It's 2013 -where's my jetpack? Well, it's right here, in a roundup of real inventions that allow a single person to hover in the air. The reason you don't have one is because you can't afford it -and you'd probably kill yourself playing with one. Tech Graffiti rounded up seven different jetpack designs, each with a story behind it. Link
(Image credit: Flickr user makelessnoise)