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The Stuxnet Trojan is very well covered in the media as more and more details about its sophisticated code become public. It abuses four previously unknown security vulnerabilities in Windows to enter the system and is specialized on attacking Siemens processing systems. An interesting information which didn’t get much attention yet comes from heise Security: The nuclear plant in Busheer isn’t really the target of the worm as rumours say, as the attacked systems aren’t approved for usage in nuclear plants. ...

Facebook has extended its “Gross National Happiness” prototype app to 18 new countries. The app analyzes words in status updates like “awesome” or “tragic” to track changes in the collective emotional state of its users. When Facebook applied the methods to its U.S. userbase last year, it found that happiness went way up on holidays and way down when celebrities like Michael Jackson or Heath Ledger passed away. While the results of the study weren’t surprising, the idea of using status updates to measure national happiness was a novel one. ...

Information has leaked that Facebook is set to roll out location-based features for users and brands as soon as this month. According to Advertising Age, users could see location options any day now. These features include the ability to check in at various locations, including retail spots and restaurants. We’re unclear as to whether users will be able to add or customize their own locations, but we are fairly positive that this move will put Foursquare, Brightkite, Gowalla and other location-based services in an uncomfortable position. ...

Location-based social network Foursquare counted its 40 millionth checkin a “couple days ago,” according to a tweet from one of its developers. The number shows that Foursquare’s growth rate is accelerating: Five weeks ago, the company announced that the total number of checkins had reached 22 million. In short: Foursquare appears to have doubled its checkin rate in just over a month. ...

Smartphones carrying Google’s Android operating system outsold the iPhone in the first quarter of 2010, according to new research out today from NPD. During the quarter, Android handsets accounted for 28% of Smartphone sales, beating out iPhone OS and its 21% share. BlackBerry was the bestselling OS, with its devices capturing 36% of the market. NPD attributes the shift to strong sales of the Motorola Droid and Droid Eris. ...

It was speculative before given the lack of independent confirmation, but now apparently Apple has gone on record to confirm that the original deal signed with AT&T for iPhone exclusivity back in 2007 was a five-year deal. That means at least some legal hoops would need jumping through if we’re ever going to see that oft-rumored Verizon iPhone before 2012. ...

This might not mean much if you’re not writing or editing a tech blog, but news that the AP – whose stylebook is still the standard for all things grammar and punctuation in the news world — is officially changing “Web site” to “website” was met with a warm reception in our newsroom (and likely quite a few others) this afternoon. ...

If, like me, you live outside of the U.S. and you’re waiting for your chance to purchase the iPad, you’re out of luck. Apple has delayed the international launch of the device until the end of May because it has sold more iPads (over half a million) than it anticipated. Here’s the official announcement: “Although we have delivered more than 500,000 iPads during its first week, demand is far higher than we predicted and will likely continue to exceed our supply over the next several weeks as more people see and touch an iPad™. We have also taken a large number of pre-orders for iPad 3G models for delivery by the end of April. ...

Palm, the smartphone pioneer, is on the block. The company, which in recent years has been eclipsed by the iPhone (and to some extent by Google’s Android OS), failed to make much of a comeback with its most recent Pre and Pixi phones. Now Bloomberg reports the inevitable: Goldman Sachs and Qatalyst Partners have been tasked with finding a buyer for the ailing company, and bids may be sought as early as this week. ...

Twitter has just announced that it has acquired Atebits, the company behind the popular Tweetie iPhone app and Mac desktop application. Tweetie’s creator, Loren Brichter, will be joining the Twitter team as well. The app will be renamed “Twitter for iPhone” and be made free in the next few weeks. Twitter CEO Evan Williams explained the move in a blog post: ...