MAD - Motocross Adventure Daredevils. - free for first week
Okay, so whilst searching the AppStore for new and exciting apps, I came across MAD. You're basically on a hoverbike on a different open-world planet; free to do whatever it is that you want. I only have an iPhone 4, so it doesn't run so great, but if it runs better on a newer device, I'm sure it's absolutely awesome. Check it out while it's free. Let me know what you guys think of it. Lame, or cool? Oh! One more thing. Turn off that pesky gyro control. I don't know why they even put it in. It's only for camera view. Have fun.