Has anyone researched how to access the gps chipset on a blackberry over usb so that it is unnecessary to transmit this data over the cell carrier's data network?
Is it possible to access the GPS chipset, store information in a buffer, and open an interface connection (over the usb charging port), for access? Not sure if J2ME allows for this...
Checkout the "UsbDemo" project and the "GPSDemo" that are included in the blackberry JDE.
the GPSDemo listens to the GPS and stores the location information into a buffer that gets sent over the network.
The USB Demo shows how to interact with a desktop client over USB.
You should be able to pull on the network code from the GPS Demo and put in the the code to talk over USB.