While the shape is the same for both phones, do you think there would be a problem with keyboard mappings not being the same for both phones due to Maemo/Harmattan vs Windows whatever.
For example, I am able to get btkb working for my Galaxy Note (even has a cursor so I can point and click!) but have had no luck getting the btkb to work with N9 (see http://talk.maemo.org/showpost.php?p...8&postcount=15).