just a thought...since bringing up the menu via touch actually contains the full screen option, and since it is still (a little) hard to tap to bring up the menu...

might it make better sense to do away with the fs button, replacing it with a menu button?

That way you have 2 methods to get to the menu (which contains the full screen option anyway) and the sm (show menu or whatever it would be called) would provide an option that would never require a stylus or perfectly still finger tap.

anyways hope I am not just being a pain cause the app is pretty good as it stands now. It just seems accessing the menu from the polsition the fs button is in now would make for better use of the space...opens up more options but still include full screen function...