Vista Media Center

Windows Vista Media Center. What can I say about it. I'm trying hard to like it but the fact that it doesn't play most of my files (Divx, MP4, MKV) means that it is just about useless to me. I'm hoping the situation improves as it becomes mainstream. But I built a media center PC to take advantage of the latest Microsoft features and they come up short. I'm sort of wishing I went with the Apple TV. Atleast I know I could quickly index my movie into something usable instead of dumping everything into a folder with a ton of useless thumbnails. But I see there is an SDK available and some of the sample applications look promising. So I just might engineer myself out of this problem. If the documentation is any good.