Fake SIP - This SIP is a placeholder so you don't see keyboard toggle if you select it as current input method. This is useful if you use keys, but keyboard autoshow irritates you.
Install cab and select "Fake SIP" in menu. When you need to use real keyboard, you can switch it
FingerKeyboard - FingerKeyboard is a stylish keyboard with great key layout and some very cool features that will make your everyday typing a great experience
This is by FAR the best keyboard released for the Pocket PC platform. Big finger keys, fast fT9 technology, predictive keyboard, multiple languages, custom height, and more
flexkboard is a free open source Qwerty Pocket PC keyboard, currently undergoing Beta testing.
It supports landscape capable devices, and full screen mode (but not vga mode)
It was initially designed for pocketpc''s phones with reduced size screens
Free LetterPAL Plus - Free LetterPAL Plus is software designed to aid indivudals with communication. The software was developed for use on the Pocket PC. Free LetterPAL Plus is ideal for individuals with limited hand/finger strength and mobility