We got a great big convoy, ain't she a beautiful sight...

Urban CB - Temporary Walkie Talkie Communities is another great idea from Rajat that I could get behind. It seems like this should already be possible, given the technology is out there. I could see this becoming quite popular in LA, where you are essentially stuck on freeways for hours a day, surrounded by people, but entirely isolated and alone in your car. I could also see an Urban CB idea creating little smart mobs of folks that could point out crashes, cops, and other delays before any other technology.