The big things that I would like to see very soon are manual editing of titles/meta data and the ability to add categories. Being able to add categories in TV for say 'General TV Shows' and 'Educational TV Shows'. It's annoying having all these random Discovery Channel programs (that usually consist of only a single episode, with the exception of great series like The Universe or Mythbusters) mixed in with my mainstream TV shows like Battlestar Galactica or Lost.
And finally, being able to actually ADD all of these programs to my library would be quite nice as well. I have all these great programs and miniseries type educational shows like 'Into the Universe with Steven Hawking' and the 'Next World' segments; but almost NONE of them are actually recognized, and Boxee won't listen to suggestions, even if it's in the correct naming format. (In accordance to this: http://support.boxee.tv/entries/4269...cal-media-file )
Another that I just remembered was the fact that Boxee is so bound to commercial media, it has zero functionality as a library of home movies, indie films, or the slew of media that there is no IMDB listing of or Boxee simply refuses to recognize. Putting aside the ability to browse files manually, that's not a permanent solution, we need the ability to have them in our Libraries.
Other than those things, I'm loving Boxee, keep up the good work!