In cooperation with Microsoft and San Francisco-based Salesforce.com, Toyota is developing their very own, exclusive social networking site. Called "Toyota Friend", it's specially designed to allow  drivers to interact with their cars as they would one of the hundreds of social networking sites popping up left and right.

Still in the developmental phase, "Toyota Friend" was recently demonstrated in a Tokyo showroom, where onlookers watched an owner of a plug-in Prius received a…