Boxee adds a menu item that loads a completely different OS. But, if you don't already know that, you shouldn't be dismissing the Boxee OS as "not simple" so soon. AppleTV's 1.x OS was excellent and straight-forward to use (even though many of the 1.x updates were very buggy). The 2.x OS feels like it was designed by an intern in 5 minutes using Visio.
I consider Boxee, as beta software, to be far better than the AppleTV 2.x interface. It does still have some wrinkles to iron out, but so does AppleTV. And what Boxee offers far outweighs, for me, any value of an Apple OS design:
- doesn't need an iTunes server to read media files from a directory.
- automatically grabs album/video art from the 'net
- automatically grabs media summaries from the 'net
- automatically sorts media files into TV, Movie and Music buckets
- automatically adds new content found in specified folders
- allows connected users to recommend content to each other
- facilitates access to Hulu, Last.fm, Joost, flickr, etc ...
It's obvious that Boxee is taking this media box thing seriously while it's only a hobby for Apple.