Startup Idea : Hitchhiker's glasses

You put on a glasses and they display in real time: You're looking at a street and see various cars. Glasses display information right above them: where the driver is headed and whether or not he can take hitchhikers. You know who to make contact with to get where you want to go. The glasses could be connected to a HitchhikingSystem for phones. Updated in realtime, application connected to GPS.