You think you saw some rocking Halloween costumes last night? I bet none of them were even close to this ultimate iPhone 4G costume that young John Savio went trick or treating in.

The young teenager began by first plastering a 40-inch LED LCD panel onto a sandwich board. He then hooked it up to his real iPhone so that the screen reflected onto the panel and it mimicked everything he did on his gadget. If that wasn't enough he then fitted it with an LED light at the back and a battery that would keep it going for two hours.

The only drawback to this contraption that took three days to build, was that it weighed 75lbs, so it must have been a little tough to lug around. But the teenager didn't seem to care - After all it was way cooooooool!

sources: newslite.tv, switched.com