Apparently it says its messed up/buggy on the 3G versions, as in the carrier ones? The TouchOne keyboard app, which is offered free for just under another 2 weeks, but it won't then work on mine, huh? I have a Verizon S2.
The Touchone works fine on my Verizon 3g S2, just doesn't show that it is installed. But, if you go to watch settings, input.. It is there. Same with the Agile Keyboard, which I think is a better keyboard but costs $1.49.
Both are pretty useless if your fingers are bigger than a stylus.