[bob13bob]

I've had both (sprint version). Get the 6900 and touchpal. When you get good with touchpal, you can get really fast typing (check youtube). It's also alot smaller in depth which helps slide in your pocket. It looks cooler. The operating system is faster and runs more smoothly. When you open the 6900 to type on keyboard you have to wait for the screen to rotate 90 degrees. This is highly annoying as sometimes it bugs out.

On the mogul (6800) side:
The biggest pro is sprint 6900 have good screens while touch's have the severe viewing angle one. It's battery lasts longer (a lot larger) [you can put larger batteries in touch but it'll be alot thicker].