Swype is one of the sliding inputs for Windows Mobile. There are SlideIT and ShapeWriter too.
[pull_quote_center]With one continuous finger or stylus motion across the screen keyboard, the patented technology enables users to input words faster and easier than other data input methods—at over 50 words per minute.[/pull_quote_center]
What is Swype anyway? Check out below video to find out. It is a really great way to input.
Swype is a built in input on Samsung Omnia II. And it works perfectly on HTC HD2 too. I believe Swype should work on any Windows Mobile devices regardless screen sizes like WQVGA, WVGA, VGA and QVGA. XDA member, Baly23 came out HTC-like skin for Swype keyboard. Therefore, you can enjoy Swype functionality and keep the existing keyboard look.
Download Swype here.