Hi Folks, I discovered a small bug with the iPad2 virtual keyboard, and a simple solution:
If the keyboard hangs and you cannot enter data, and it wont lower using the lower keyboard button just do this:
1) hit the home button
2) go to settings -> general -> keyboard
3) go to intenational Keyboards
4) tap on the keyboard mentioned (usually english)
5) choose any different Hardware Keyboard Layout (it is default set to U.S.)
6) exit settings and the problem should be solved.
7) if you want to use the U.S setting then go back and set it, the problem stays solved!
its simple and it works.. I have registered a bug report with apple for this.