One specific thing off the top of my head is I can't copy videos from Hulu to my mp3 player to watch offline at a later date.

It could work with my boxee setup.

It could work on my iPad while I'm on the way to, or in the mountains.

It could work when my connectivity sucks / is saturated.

It could have the things I want when I'm ready for them.

Be available outside the US.