This is going to be a very short tip on missing iPad 2 keyboard problem. If you have got a Apple Wireless Keyboard connected with your iPad using Bluetooth then probably you would have noticed this problem. Some times your iPad will not display the keyboard as it would be still connected to your external keyboard.
To fix this issue all you need to do is press the Eject key on your external Keyboard. This would popup the qwerty keyboard on your iPad.