A new little toy. A Bluetooth dongle for OBD-II. I can plug this into the scan port of any vehicle with an OBD-II compliant ECU (any car sold in the USA since 1996) and it will connect to my Motorola Droid. Can read/clear codes. Can monitor pretty much every parameter the ECU gets data from. Interface it with the Droid App "Torque" and have fun! Can hardly wait to see what it says about my supercharged NB!