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Apple shares opened down about 4.3 percent after the world’s most valuable company reported fourth-quarter results that narrowly missed analyst estimates.

Just days after the release of Apple's new operating system, iOS 5, the tethered (Redsn0w 0.9.9) and untethered (FastRa1n v5.0) versions to jailbreak the Apple devices supporting iOS 5 are out.

iPhone 4S hit the stores Friday last, after a long course of anticipation about iPhone 5.The new smartphone runs on Apple's new iOS 5, OS sporting some of the rumored features and specifications that turned cacophonous over the Internet in the past few months.

Apple Inc. (NASDAQ: AAPL) reported a 54 percent surge in fourth quarter earnings on continued strong sales of its Macintosh computers, iPhones and iPad devices. In a rare instance, Apple's earnings and revenue came in below Street's view.

Twitter’s sign ups have soared since the launch of Apple’s iOS 5 operating system last week, with three times as many people now opting into the social network, the company said last night at the Web 2.0 conference in San Francisco.

Samsung Electronics Co. and Google Inc. has announced the Galaxy Nexus, a new smartphone that's running a new Android operating system called the Ice Cream Sandwich. Google's Ice Cream Sandwich a mobile software than can run on both tablet computers and smartphones.

Research In Motion will introduce souped-up operating software for its BlackBerry smartphone and PlayBook tablet, aiming to make them more formidable competitors to Apple and Google devices.

Apple reported full-year revenue of $108 billion, firmly establishing it as one of the world’s top technology companies. Fourth-quarter earnings of $6.2 billion exceeded analyst estimates, but revenue of $28.3 billion fell slightly shy of them.

Apple had a net income of $6.62 billion and revenue of $28.27 billion, or $7.05 per share, less than the $7.38 per share and revenue of $29.69 billion predicted by Wall Street.

In less than a week, Apple's iOS 5 system upgrade has taken over a third of iOS devices.

While Apple’s fourth quarter results won’t be known until late Tuesday, one thing is nearly certain: for the first time annual revenue will exceed $100 billion, maybe by as much as $10 billion.

Apple's iOS 5 upgrade featured deep integration with Twitter. The popular microblogging service has experienced enormous growth since the release of iOS 5, but can it finally surpass Facebook?

Apple Inc.'s projection of selling 25 million iPhones by the end of 2011 lends credence from the registered sales of 4 million units of iPhone 4S during the opening weekend.

Now that it’s betting $12.5 billion to acquire Motorola Mobility, Google plans to unveil its latest version of the Android OS, known as “Ice Cream Sandwich,” at a Hong Kong event Wednesday with Samsung Electronics.

In just a mere three days after its release, Apple's newest iPhone 4S has already sold over four million units.

Apple iPhone 4S went on sales on Friday. Maybe you have already got one in your hands. But do you want to find out what it looks like inside? Luckily, we live in an era which doesn't lack fanaticism for digital products. Even one day before the launch of iPhone 4S, someone had already posted a video of teardown of iPhone 4S, so you don't need to take your shiny new toy apart in case you're one of those who are wondering what lies beneath the shiny hood.

After the Redsn0w 0.9.9, which was a tethered jailbreak for iOS 5, an untethered jailbreak - FastRa1n v5.0 - has made its entry.

Samsung and Google will release its Galaxy Nexus, popularly known as Nexus Prime — an Android Ice Cream Sandwich-powered smartphone — in November.

iCloud and Siri voice recognition are only two of the five major reasons why iPhone 4S sold four million in three days.

Skylanders uses physical toys to control virtual characters in what Activision hopes will be this holiday seasons must-have product.

Rumors say production of the iPad 3 may already be under way.