Talking cars

From Ford - using WiFi and GPS to warn drivers about potential accidents, and described here. Boringly, they don't really talk like the cute ones in the picture- they just flash red warning lights on the windscreen for the driver to see. And it works best once it reaches critical mass and lots of other cars have the system enabled - WiFi, remember. Hope BT Openzone doesn't sod this up for everyone, they way it does with my smartphone.