The liyamana is going live again .From today on i'll update this blog. :)

 

I'm sure all of you notice that you usually download (much) faster than you upload on average, right? So, how is this possible, if the number of total bits downloaded in a swarm always equals the number of bits uploaded (Uploaded to downloaded ratio for a swarm as a whole must equal 1:1) ?



Google Wave is a self-described "personal communication and collaboration tool" announced by Google at the Google I/O conference on May 27, 2009.[1][2] It is a web-based service, computing platform, and communications protocol designed to merge e-mail, instant messaging, wikis, and social networking.[3] It has a strong collaborative and real-time[4] focus supported by extensions that can provide, for example, spelling/grammar checking, automated translation among 40 languages,[2] and numerous other extensions.[4] Initially released only to developers, a "preview release" of Google Wave was extended to 100,000 users in September 2009, each allowed to invite twenty to thirty additional users. On the 29th of November 2009, Google accepted most requests submitted soon after the extended release of the technical preview in September 2009; these users have around 25 invitations to give.



Google Wave is designed as a new Internet communications platform. It is written in Java using OpenJDK and its web interface uses the Google Web Toolkit. Google Wave works like previous messaging systems such as email and Usenet, but instead of sending a message along with its entire thread of previous messages, or requiring all responses to be stored in each user's inbox for context, message documents (referred to as waves) that contain complete threads of multimedia messages (blips) are perpetually stored on a central server. Waves are shared with collaborators who can be added or removed from the wave at any point during a wave's existence.

Waves, described by Google as "equal parts conversation and document", are hosted XML documents that allow seamless and low latency concurrent modifications.[5] Any participant of a wave can reply anywhere within the message, edit any part of the wave, and add participants at any point in the process. Each edit/reply is a blip and users can reply to individual blips within waves. Recipients are notified of changes/replies in all waves in which they are active and, upon opening a wave, may review those changes in chronological order. In addition, waves are live. All replies/edits are visible in real-time, letter by letter, as they are typed by the other collaborators. Multiple participants may edit a single wave simultaneously in Google Wave. Thus, waves can function not only as e-mails and threaded conversations but also as an instant messaging service when many participants are online at the same time. A wave may repeatedly shift roles between e-mail and instant messaging depending on the number of users editing it concurrently. The ability to show messages as they are typed can be disabled, similar to conventional instant messaging.[3]

The ability to modify a wave at any location lets users create collaborative documents, edited in a manner akin to wikis. Waves can easily link to other waves. It is in many respects a more advanced forum.[6] A wave can be read and known to exist by only one person, or by two or more. It can also be public, available for reading and writing to everyone on Wave.

The history of each wave is stored within it. Collaborators may use a playback feature in Google Wave to observe the order in which a wave was edited, blips that were added, and who was responsible for what in the wave.[3][4] The history may also be searched by a user to view and/or modify specific changes, such as specific kinds of changes or messages from a single user.[2]

As of November, 2009, Google Wave is still in active development and is expected to remain in development until later in 2009.[2] It was launched to about 100,000 users on September 30, 2009.[7] Google Wave access can be requested. Developers have been given access to Wave proper, and all wave users invited by Google can nominate up to 20 others.

HSPA+ (High Speed Packet Access Plus) is also known as HSPA Evolution and Evolved HSPA. HSPA+  was standardized in 3GPP Release 7 and Release 8. HSPA+ will apply some of the techniques developed for Long Term Evolution (LTE) and allow operators to extend the life of their HSPA networks. 3G Americas initiated proposals at 3GPP to lead the development of the HSPA+ standards which now have received wide scale commitments from operators.

HSPA+ will bring improved support and performance for real-time conversational and interactive services such as Push-to-Talk over Cellular (PoC), picture and video sharing, and Video and Voice over Internet Protocol (VoIP) through the introduction of features like Multiple-Input Multiple-Output (MIMO) antennas, Continuous Packet Connectivity (CPC) and Higher Order Modulations.

Some of the key features of HSPA+ include the following:

HSPA+ is an affordable and incremental upgrade to existing HSPA networks. It provides a tremendous advantage to HSPA operators, which is not an option for CDMA operators who are already unable to compete with the higher data throughput performance of HSPA and have no future evolution commercially viable for enhancement to their EV-DO  networks today. Because it offers impressive performance at an incremental cost, some HSPA operators plan to use HSPA+ as a companion to LTE.

Telstra in Australia, Starhub in Singapore, CSL in Hong Kong and Mobilkom Austria in Central and Eastern Europe were the first operators to launch commercial HSPA+ networks in early 2009, initially providing peak theoretical download speeds of 21 Mbps. Several operators such as Telstra plan to upgrade their  networks to 42 Mbps in the short term.

Benefits

Fully integrated
Qualcomm's HSPA+-enabled solution features fully integrated next-generation wireless capabilities and advanced applications. Integration of these features onto a range of chipsets, allows manufacturers of data cards, handsets and personal/mobile computing devices to get their devices into the marketplace faster than ever.
Cost effective
HSPA+ solution is backward compatible with prior generations of WCDMA and does not require wireless network operators to obtain/purchase new spectrum for deployment. Thus, operators can leverage their existing network and spectrum resources - preserving investments - to offer next-generation wireless bandwidth and performance.
Greater functionality
Qualcomm's HSPA+ solution enables the mobile broadband experience consumers and professionals demand today and well into tomorrow, including multimedia streaming, video telephony, quick and accurate position location, real-time 3D mobile gaming, corporate network access, faster Web browsing, and multitasking.

Nokia’s new N900 “mobile computer” is now, finally, official. The N900 is most notable for being the first handset to features the Finnish company’s new Maemo 5 operating system, an OS skewed heavily towards internet use and built on a Linux base. Here are the key features of this rather sleek looking new cell.

The screen is touch sensitive (natch) and squeezes 800 x 400 pixels into 3.5-inches, the unit includes GPS, an FM transmitter, TV-out and USB ports and a 5MP camera. And of course it has a slide-out QWERTY keyboard, something very important for some people (although there is an on-screen QWERTY, too). It also has a hefty 32GB of on-board memory, expandable with a microSD card.

In short, it does everything a modern phone should. What it will come down to is the software, a place where Nokia has arguably lost its way of late. Nokia’s dumb-phones were probably the easiest to use handsets then available. Will Maemo fix this?

For that, we’ll have to wait for the hands-on test. But the pictures look promising, and the light-on-dark interface is both clear and gorgeous. The N900 will be available in October for around €500 ($710). And one more thing: the Mozilla browser does Flash. Take that, iPhone.

 

When Sam Altman visits New York, he's never alone for very long. Altman is the 24-year-old CEO of Loopt, a company that makes a "location-aware" app for mobile phones that tracks where all of your friends are and what they're doing.

"I'll pull it out on the ride in from the airport, and before I've even gotten to the city I'll have figured out who's nearby me, and we'll be making plans to get together that night," Altman told me. If he looks on his phone's map on a Saturday night, he can literally see groups forming in real time. "It's getting to the point now where if you want do something social, you have all this information about the world around you," he says.

Location-based applications are quickly becoming the hot new thing on phones. Since many mobiles today — most particularly the iPhone — can determine their location via GPS chips (or pinging local cell towers and WiFi signals), they're spawning a whole new ecosystem of apps. There are social ones like Loopt or foursquare, which track the movement of friends as well as find-stuff tools like Yelp that locate top-rated bars and restaurants near you. According to web-research firm Compete, one in three mobile-phone owners uses location-based tools, and the number of apps has exploded from 500 to 2,500 since last October.

Yet this new class of information tool violates everything we normally think about the internet.

The whole reason the web revolutionized the world was that it rendered geography irrelevant. People connected worldwide based not on location but on their common interests: Model-train collectors and free-speech activists and Britney Spears fans could swarm onto the discussion boards and blogs, from Chicago to Tehran. By severing the link between location and geography, the internet turned everything upside down.

Now mobile phones are inverting everything again, in the other direction — because your location becomes most important thing about you. So how is the return of geography going to change our lives?

The near-term effects are obvious: We're using it as a sort of radar for our social lives and Yellow-Pages needs. The first round of geo-aware phone apps has consisted mostly of "listings" services and tools for tracking your posse.

Altman thinks these apps are already tweaking people's everyday behavior. Early adopters often allowed only approved friends to track them; but now a larger chunk of Loopt users publish their location openly, for anyone to see. Why? Being open allows for more happy encounters — hook-ups with friendly strangers who are useful, or at least interesting, to know.

What's the next? It's probably ''tagging:'' Writing up notes, implanted in space, that describe something interesting about a particular location. Some apps already offer crude versions of this: With Socialight or Brightkite or Graffito, people can pick a spot on the map — using their phone or browser — and post a note that others will see when they're nearby.

These markups are still pretty sparse, but they're intriguing: When I wander through midtown Manhattan, I find it's an odd mix of the utilitarian — notes warning me that a bar has awful service, or recommending an awesome music store — and grippingly personal: a dispatch describing where somebody had a breakup and what it was like.

"It's like this form of Terminator vision," jokes Socialight founder Dan Melinger, whose app is set to launch soon on the iPhone. He thinks that as more and more people tag the real world, it will create a sort of parallel, invisible internet of data floating over our everyday lives.

"You can figure out the mood of a place by searching for all notes in an area," Melinger adds. What types of music do people listen to in this neighborhood? What do they argue about?

All those tracks of our lives form an enormously rich stream of information. So most geo-app pioneers are developing collaborative-filtering tools that find patterns in the data; for example, recommending other people you might want to "friend" because they have similar everyday behavior — going to the same cafes and schools and bars (at the same time of day) and talking about the same topics in their tags. (And, of course, alerting advertisers if you're the type of person who drinks a lot of coffee, as evidenced by your daily route.)

Altman calls this the "life graph" — the lattice of invisible geodata you produce every day as your phone leaves trails through the digital ether

Geo-apps face one big technological hurdle, though: Most phones do not allow an app to constantly check its location — every minute, say — in part because that constant pinging would drain the mobile's battery. They thus require you to pull out your phone and look at it, and many people find this onerous (or simply forget to do it regularly).

Assuming those tech hurdles can be overcome in the next few years, many geo-app makers envision physical space marked up with interesting information that actively pops up when you walk past a particular location.

In the long run, we could find ourselves living in a world where long, threaded discussions and conversations occur not only on blog postings or Facebook status updates but in specific cafes, public buildings, or rooms.

Granted, the privacy aspects of geodata are hair-raising. Many of these new apps intend to monetize their service by helping advertisers target you based on where you go — using your "life graph", as it were, to sell you things. Geo-enhanced advertising is likely to be something potentially useful — and annoying and occasionally unsettling — as Google's ads keyed to your search queries and e-mails.

Ted Morgan, the CEO of Skyhook — a company that maps out WiFi signals worldwide, to help phones pinpoint their location — thinks the way geotagging really changes life is by becoming part of everything: All Tweets, all Facebook entries, all MySpace posts, all news items become automatically marked up with geographic data. What will that do? He's not sure. But then again, nobody predicted social networking, either.

"You're going to see some Mark Zuckerberg guy come out with an idea that nobody could foresee," he predicts.