TouchPal is an innovative soft keyboard on Windows Mobile platform, powered by T+ input technology.
Typing on TouchPal is pretty easy: you just need to tap and slide by your thumb. In most cases, you only need to tap tap tap and use the auto-word predition to input the right word. For precise input, you can slide left/right for a specfic letter, slide up for uppercase, slide down for a punctuation, or slide up and then down further for the symbol/number on top of each key.
Check out the video.