Yves Rossy's jetpack is way cooler because it has jets. I like his original folding wing model where he could jump of of a helicopter, unfold the winds, recover, and then climb. Also lets be honest, even with a ballistic chute that thing is never going to be approved for normal use. If the engine fails or a fan breaks when you are 10' above the ground you are going to get hurt. 20' and you are dead. I wouldn't fly it.
It has given me an idea though. What if you took those ducted fans and mounted them on the wings of a small airplane, then powered them by a single small turboshaft engine? It could be an affordable and fuel efficient plane to fly, with the advantage of taking jet fuel (since 100LL will be way too expensive for recreational flying in the future).