Rumors of MS supporting more codecs have been floating around... of course just rumors.

Till then you can use Transcode360 to play about anything you want on a 360.

I didn't mean to back anyone into a corner with the apple speak... yes I dislike apple (as many ppl dislike MS) and they just don't offer me anything that I can use.

I do think the Media Center interface is the caddy of HTPC UI's thou... 2005 and Vista's. That's just personal preference thou.