I’m currently trying out Nintype. I’m not sure if it’ll stick, but it’s an interesting experiment. If you’re an iOS user and are interested in testing out alternate keyboards, then this review (and specifically the image at the top of the review) will give you an idea if Nintype is right for you or if it’s going to send you into an epileptic fit:
Is This Psychedelic iOS Keyboard The Craziest UI In Design History?