MOGA Mobile Gaming System for Android 2.3+
Cheap & Fun
This piece of hardware is fun, works with a decent amount of apps, and with some fiddling it works with emulators. Be prepared to sink a couple hours into setting up emulator support on older phones. After that it's a blast.
Wow, very impressed
I did't want to but tis beacuse i didn't think it would work with emulators. I didn't want to get a different app and make a work around mapping for it to work. Im glad i bought it. I use Super Gnes emulator and this controller works flawlessly with it. The emulator automatically picks up this controller via Bluetooth. Super Metroid works like a dream. I literally have a Super Nintendo on my phone and the controller is wireless. 10 of 10 all the way. I would have like a d-pad but its no big deal. A must buy for emulators and Android games.