For Serious Mobile Gaming: G-Pad Physical Controller for iPhones

The awesome thing about smartphones is that they're so smart, you can run emulators on 'em and play your favorite console games anytime, anywhere--without the console. For example, the Game Boy emulator. Some of these games aren't easy to play with on-screen controls, so it's a good thing that you can add physical controls with the G-Pad.

It's a silicone sleeve that you can slide over the simulated, on-screen controls so you can play with controls that you can actually feel instead of having to merely imagine them.

Check It Out: $8