Android devices are pretty good for playing old school video games, but the hardware keyboard on most phones isn't an ideal controller. The $US15 Game Gripper, however, instantly turns your phone into a handheld, easy-to-control video game system.
One of my favourite things about the Android Market is the existence of awesome Super Nintendo, Game Boy and other old school console emulators. The problem is, most phone keyboards aren't as comfortable or easy to use as a real game controller. This neat clip-on accessory, though, covers up the unused keyboard buttons and makes the important ones easier to press, using the D-pads and button types we're all used to.
Sure, it does bulk up your phone a little bit when it's on, but the whole contraption still doesn't take up any more space than a nintendo DS or PSP might, and for those long trips when you want to actually play some video games (instead of just killing time with a quick round of Tetris), it can be pretty nice to have. Of course, if your phone doesn't have a hardware keyboard, you could always hack together a mount incorporating a Wii controller, too.
The Game Gripper is currently available for the Motorola Droid, Droid 2, Backflip, Devour, the Samsung Moment, and the Nokia N900. Check out Droid Life's video review above to see it in action on the Droid 2.