This guy already posted the one I'm using right now. Nillkin Super Shield. It's hardly the most protective case in the world but it's thin and the textured back gives a noticeable improvement to the grip.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service