I am working on a fleet tracking app for the cab company I dispatch for. This app would involve USB GPS units transmitting periodic position updates via 3G. This info would be used to show car positions on a map (ala VehiclePath), along with showing dispatchers the ETA for the vehicles to pickup locations, and possibly used as a meter system.

I would appreciate any pointers to good low-to-medium level info on working with the ActiveX control. One question in particular - is it possible to pull live GPS position info out of the control, so it can be used as real-time nav in the car and for unit tracking?