Gizmodo reports: [edited]
Technically still a prototype, the P12 is promised to be very close to the final version of the Martin Jetpack that could be available commercially sometime in mid-2014. However, you'll want to keep your $5,000 deposit in your pocket a little longer because the first units will be exclusively sold to first responders like police and fire personnel who will help field test the jetpacks.
With a top speed of just 46 mph you'll have to put your Rocketeer fantasies on hold for just a little while longer. But with a suggested range of about 20 miles or half an hour on a full tank of premium gas, this could be the perfect commuter that isn't effected by traffic gridlock. Albeit, a very, very expensive commuter with an expected price tag pushing $200,000, plus the cost of getting your Sport Pilot's license in the US at least.