"Microsoft Chairman Bill Gates told the newspaper in an interview that the two companies could benefit from a broad partnership in digital entertainment, both having "a lot of incentive to work together" in digital-music "infrastructure," including online-music services and protection against improper music copying. Since rolling out the iPod, which has sold nearly 6 million units and was a top Christmas gift this past holiday season, Apple has garnered 87 percent of the market for portable digital music players, market research firm NPD Group has reported. Microsoft contends that Apple's iTunes online music store sells songs in a format that can be played only on iPods and not other portable music players based on Microsoft's software, so consumers need a choice, Gates told the Journal."Interesting news, Sony seems to keep trying to stick with their own format, but adding them to PlaysForSure would be a huge win for the Windows Mobile team.