NASA’s Puffin Is Way Cooler Than a Jetpack
wired.com
wired.com
But the real questions is: how do you see the ground while you're landing, if you're facing up?
I guess you look down. The windshield looks transparent in that direction.
Lacking door-to-door autopilot, you'll still have to take all the usual pilot's training. Remember that idiot who nearly ran into you today because he/she was texting and trying to drink from a Starbucks cup? People have a hard enough time handling two dimensions--but when you screw up piloting your Puffin, you don't get a fender bender, you get two 1,000 lb objects dropping from 4,000 feet into my back yard.
On the other hand, I would imagine it would be possible to construct an L-shape sitting cockpit that could rotate in relation to the engines so that the pilot would be head-up in both takeoff/landing and flight.
Free protein!