If you own a Honeycomb tablet, then you probably know that a true fullscreen option doesn't exist. When watching YouTube videos, viewing images in the gallery, or playing a games, the navigation bar is always present - which causes frustration for a lot of users. Enter HoneyBar, a simple way to temporarily hide the navbar on rooted tablets.
Upon install, HoneyBar will launch itself and constantly run in the middle of the navbar, which is usually blank space. I say 'usually' because with TouchWiz on the Samsung Galaxy Tab 10.1, this is where the mini app tray is.