NEW YORK ( TheStreet) -- Apple ( AAPL) was up 0.04% in pre-market trading Thursday, as the company released a version of its new operating system to developers. The platform, iOS 4.3, has several new features including the ability to turn the iPhone into a mobile hotspot, new camera effects and multi-touch gestures for the iPad. News Corp ( NWSA) is exploring strategic options for troubled social networking site Myspace including a sale, spinoff or merger, the company said Wednesday. On Tuesday, Myspace said it would lay-off about 500 employees, or 47% of its workforce. Global personal computer shipments slowed in the fourth quarter of 2010 as consumer sales softened, and competing products like tablets gained popularity, according to industry tracker IDC. Shipments rose 2.7% year over year, compared to a projected increase of 5.5%. Hewlett Packard ( HPQ) was the top vendor of worldwide PC shipments with a 19.5% market share, followed by Dell ( DELL) with a 12.1% slice. Shares of Dell rose 0.06% in pre-market trading to $14.40, while shares of HP fell 0.31% to $45.50. TripIt, a mobile trip planning service, has been acquired by travel software company Concur Technologies ( CNQR) for up to $120 million, the company announced Thursday. TripIt had raised around $13 million in venture capital from investors including Azure Capital Partners and O'Reilly AlphaTech Ventures. Daily deals website LivingSocial is expanding into Europe through acquisitions, buying a majority stake in a Spanish coupon site. The acquisition is LivingSocial's first since it received a $175 million investment from Amazon late last year. --Written by Olivia Oran in New York. >To follow the writer on Twitter, go to http://twitter.com/Ozoran. >To submit a news tip, send an email to: firstname.lastname@example.org.