Sales of Microsoft’s Xbox 360 have topped 17.7 million worldwide, according to sales figures from the company. “Microsoft is proud of the contributions Xbox 360 is making to the gaming industry, and looks forward to an even more successful 2008,” the company said. Meanwhile, Bill Gates, in an interview with the BBC, said Microsoft is determined to make the Xbox 360 the “most reliable video game box out there.” “Well, we certainly had to apologize to our uses about a number of boxes that had to be replaced,” Gates said. “We've got incredible reliability on the new work we've done.”