You're supposed to be able to return from fullscreen by touching the screen again. But it seems that there are some problems with "events" sent by the playing video screen. We are running against them.. and we will do our best to fix it. It seems to work for some people and not for others. Do you have mplayer installed? It seems to work better then.

About the controls on top of the video : the current video infrastructure doesn't allow us to do that. in mplayer would be possible but we don't have the time / devs to do that : /

BR

Marcelo