PALV, a revolution in personal transportation? Well, maybe-- but I don't think a personal air and land vehicle will work anytime soon. Bad traffic jam? No problem, lets just lift off and fly home--wait, don't hit that overpass! What a disaster waiting to happen. Could you imagine the air traffic with a highway full of people lifting off in there little PALV's? I like the idea though, a single rotor that can fold away from a slim 3 wheeled vehicle. John Baker, a Dutch entrepreneur is developing the PALV with Spark Design. Maybe it will catch on for private use in Europe, but I cant imagine our country will ever see anything like this for a long time.