The piKey Sample in 0.4 will NEVER work.
The code used to make it too old.
I do have a fixed version and it works great... but I really cannot see why you'd want to change the keymap...
What are you trying to do? All the keymaps (ESPECIALLY Targus) have been mapped perfectly.
If you're thinking of adding German support, editing the keymap won't do anything.

E-Mail me with your ideas and I'll see if I can help you out...

Maybe you could... test... a few things for us...
