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.

Democrats in the Senate blocked a Republican-backed resolution to disapprove of the FCC’s rules on net neutrality. The vote was 52-46 against the resolution. Adopted by a divided FCC last December, the rules forbid broadband providers from blocking legal content while leaving flexibility for providers to manage their networks. The rules still face a court challenge. Lawsuits by Verizon and others have been consolidated. Backers of net neutrality say big providers could otherwise use their gatekeeper role to discriminate against competitors. But Republicans said the rules were an unprecedented power grab by the FCC.

Sony CEO Howard Stringer vowed to stay on as head of the Japanese electronics conglomerate, dismissing reports the longtime helmsman will step down next year and adding that he remained keen on leading the once-dominant corporate powerhouse in its battle to reverse losses and fight rivals. Last week, Sony shocked investors by warning that the company would report a fourth consecutive year of losses and offered few details of its plan to halve losses in its television division, which itself is headed for its eighth consecutive annual loss.