ShapeWriter Keyboard was released on Android Market too. There is one trial version for one month now and one full version.
You can know the detail from "www.shapewriter.com/howto" or watch the demo video from Youtube. Just search "ShapeWriter" on Youtube.
You will like it. Because it will allow you to input much faster and easier.

If you chose to install and try it, you need to enable it in "Setting -> Locale&text". If you enabled more than one input method, you need to activate it before using. Just hold one text box for seconds, then select "input method" from one popup menu, select "ShapeWriter" finally.