Hi Andy
long time no action. Are you still waiting for some positive results for the Maple? I stopped work on it a long time ago. Still i have some news. A week ago a friend of mine gave me a mbed module for testing. Did you ever had a look at this wonderful small piece of hardware? 
You should. Because this thing is going to be a mighty startup. Have a look at all the libraries and samples they are presenting.
Gosh i was really amazed. I gave this module back after fixing the usb cable. I have placed an order for a board. I think it will pull all my attention on it. 