Oh noes! This is completely unusable for a lot of people. Afaik its only the English keyboard that has separate up/left and down/right keys, rest of us have up and down integrated with left and right respectively.

This is just one alternative on how you can do this (assuming all buttons work, not including proximity sensor and lock switch).

Volume rocker = Volume control
Camera button = Home (hold for task list)
Power button = back (hold to turn of the device)
Keyboard keys = what it says on the keys

Please, NITdroid should be universal for all keyboards, so you dont leave us others out.