I'm somewhat new so I hopefully I'm not just missing something. A few suggestions:
Make playlist easier to browse. I can only see 3 videos at a time when browsing because it only shows up in a bar. The bar is okay I guess, but why not give us a way to view exclusively the playlist so it fills the screen and shows all items in a page or maybe 16 per page? Also, when removing a video it skips all the way back to the beginning. Very annoying.