The OBDII Bluetooth Adapter is a generic ELM327 scanner from ebay, and I am using freeware, I'm using OBDGauge. Here is the link to the OBDII adapter:
http://cgi.ebay.com/ebaymotors/elm32...motiveQ5fTools
I tried ScanTool from
http://www.autoenginuity.com/ but it didnt work. On the treo 800w it ran, but failed at connecting. On the DIamond it doesnt even run. install it, and when i click on it i get the rainbow-colored circle spinning and it keeps doing that forever.