MediaFile

Tech wrap: Nook too costly for Barnes & Noble?

Barnes & Noble cut its Nook sales forecast for this year and shocked investors by saying it was considering a sale of the electronic reader and tablet business, sending its shares down sharply. The bookseller has been banking on the Nook for growth, so news that holiday sales of the basic touchscreen e-reader were disappointing raised investors’ fears that Barnes & Noble was struggling to keep up with Amazon.com’s Kindle.  ”They’re going to have to raise capital for Nook if they want to stay viable,” said Morningstar analyst Pete Wahlstrom.

Michael Woodford, the former CEO of Olympus, is dropping his bid to retake control of the troubled company because of lack of support from Japanese institutional investors, according to a Wall Street Journal report. Woodford will announce his decision to give up a proxy battle with management on Friday, the report said, citing an unidentified aide. Woodford was fired as chief executive in October and blew the whistle on a $1.7 billion accounting scandal at the Japanese maker of medical devices and cameras.

AT&T is on track to finish its wireless network upgrade with faster mobile Web services by the end of 2013, having exceeded its target for 2011 by 4 million people, a top executive said.

General Motors said it has developed a proposed fix to the battery pack for the Chevrolet Volt to eliminate the risk of a fire being triggered days after a crash. GM said it would strengthen structural protection for the 400-pound lithium-ion battery in the Volt by adding steel reinforcements and take other steps to prevent coolant fluid from leaking and triggering a fire. GM will notify Volt owners of the fixes in the coming days. Owners will be able to have Chevrolet dealerships conduct the needed repair work starting in February, the automaker said.

Blogging on Research in Motion’s downward spiral, Kevin Kelleher argues that:

Tech wrap: Modern Warfare 3 answers call to duty

Activision Blizzard’s “Call of Duty: Modern Warfare 3″ video game racked up more than $400 million in sales on its first day in stores in the U.S. and the UK, beating last year’s record of 5.6 million units, or $360 million in sales of “Call of Duty: Black Ops.” That game went on to sell $1 billion in less than two months.

Apple’s iOS 5.0.1 update did not address all of the battery issues troubling iPhone users, AllThingsD’s John Paczkowski writes. In a statement given to AllThingsD, Apple told the blog that “the recent iOS software update addressed many of the battery issues that some customers experienced on their iOS 5 devices…We continue to investigate a few remaining issues,” according to Paczkowski.

Regulators are investigating the safety of batteries used to power electric vehicles after a General Motors Chevrolet Volt caught fire following a routine crash test. The National Highway Traffic Safety Administration said that it has asked other manufacturers who make electric cars or who plan to do so for information on how they handle lithium-ion batteries. The request also includes recommendations for minimizing fire risk. NHTSA said it does not believe the Volt and other electric vehicles are at greater risk for fire than gasoline-powered engines.