Have you actually got one of these - if not I would look elsewhere since it seems to be very expensive and badly documented. I can't see any detailed spec for the digitizer but it looks as if it has a serial output not USB. Are you sure your link takes me to the right part because the Gyrocube 3A has analogue outputs.
The link you provided goes to an Analog only device, all sensors are output in Analog form
there is indication of an ADC but again this board does not seem to have USB on it
If your using a USB interface you will need to provide the part link.
if your using the base unit, then an Arduino could read the analog values directly and communicate this via its USB, but this will only give you 10 bits of resolution at best. Using an external ACD can improve this
That sensor is nothing like the one you linked to.
I had a quick look at the Stanford project and I think you are on your own here. ONavi don't even list this sensor as a product and Stanford don't seem interested in describing how the sensor works. Your only hope is to email ONavi and ask for details of the USB interface so that you could write your own software.
You'll need a device that supports USB OTG (google it) and I don't think that the Arduino does.
This all seems very hard work - the other route is to hack the sensor - but I get the feeling that may be out of your comfort zone. If not then open it up and take some pictures (good enough so we can read the writing on the chips) and post them here.
