I definitely agree that Facebook could improve on the whole video sharing experience. Right now, videos are discovered via popular pages, which means you've got to like them and then have your feed flooded by content you weren't necessarily going to watch; a dedicated page for videos could be great. Anyway, keep it up - nice mockups!
Oh, and yes to putting an end to comments where everyone is tagging their friends.
Oh, and yes to putting an end to comments where everyone is tagging their friends.