iPad Keyboard not visible after update to iOS 5.01

After updating to iOS 5.01 the keyboard wasn’t shown anymore on my iPad2. This happened in all applications except Cydia.

imageI remembered that I had installed the (excellent) application  5-Row Keyboard for iPad which shows the numeric keys together with the QWERTY keys (in a 5th row). I also remembered that this tweak didn’t work in Cydia so I assumed that the tweak was incompatible with iOS5.

After uninstalling via Cydia the keyboard worked fine as well but I really miss the 5th row…