http://www.jet-man.com/actuel.html#
My French is horrible, so I don't have many details. It looks like the guy built a lightweight, folding wing, mounted four radial compression model jet engines, and jumped...
The pilot appears to be a former Swiss AF pilot--F5/Mirage driver, retired 747 driver, and now an avid extreme skydiver. As I said, my French is terrible, but the guy fancies himself a pioneer, and "a rival for Batman."
I want one.