I think MPEG4 Part 2 (Divx/Xvid) has already become the MP3 of video. H.264 is its Vorbis, or its AAC: a superior format by every measure, but being superior isn't enough to unseat the de facto standard. It's not a smart move these days (except perhaps for Apple, who make their own rules) to make a video product that doesn't play MPEG4, any more than it is to make an audio product that doesn't play MP3.

It's been however many years since we sounded the charge with Karma, which always treated FLAC and Vorbis as first-class formats alongside MP3, and I still end up transcoding all my FLACs to MP3 for the Soundbridge, the Carbon, the Receiver. And SXSW only comes as MP3.

Peter