Allow the user to zoom out on fullscreen for handheld platforms
Currently, when launching handheld games in fullscreen Games, the game window is stretched to the full screen just like console games. But usually, a handheld game is not designed to be displayed in such a large screen. The Super Game Boy and Game Boy Player allows the user to optionally reduce the screen size of their handheld games so it doesn't come off as too large on their TV.
What about allowing users to do the same with Games? We could divide the screen size by a factor or two for handheld games and leave the option to stretch it to full screen.