Buying a jetpack isn't such a fanciful idea at all. Another company, Martin Aircraft, has developed a "jetpack" and is close to full quantity manufacturing and sales, if not already in that cycle. As I recall, they were going to certify the device in the US as an ultralight aircraft, as its very light and only holds 5 gallons of fuel, enough for about an hour of flight. Cost would be about $100 K. Kind of steep for me personally (read "No way!"), but not all that much for an aircraft these days. It's actually not powered by a jet engine, but by motor driven fans. Doesn't look like its designed to fly alongside fighters, but you can take off and land vertically. It doesn't have to be tossed out of a cargo plane to take off and can land on its own. An emergency chute is part of the safety equipment, but isn't required to land.
In addition to the recreational version, there's apparently interest from one or more military organizations. A VTOL aircraft with hover capability would be attractive for a variety of military missions including unmanned, armed or unarmed recon, delivery of supplies to a specific location with pinpoint accuracy, removal of wounded from a "hot" battle area, rescue from rugged locations where helicopters aren't feasible, insertion of special forces personnel, etc. Several of these things could be transported to a take off point in the back of a truck, on a small trailer towed by a HUMVEE or even on a horse drawn wagon (not far fetched at all). Pretty neat device.
Link:
http://martinjetpack.com/