Thanks for the program, just what I needed!
ATM, though, it doesn't worky for me. I'm unable to connect my bt keyboard, as the bluetooth-symbol in the system tray lights up blue for a fraction of a second and then goes white again if I turn on my (paired) keyboard. I believe that's the same problem that the bt-hid-scripts tried to solve (and they did for me, but didn't get the layout right).
Because the keyboard can't connect to the N900, I don't see any keyboards in the keyboards dialog in your app.

Any idea how to solve this? I'd really love to finally use my kb