Have a look at their 'filmpjes'. You'll get the idea. It's a new crazy way of proppeling one's body to music. And it immediately sparked a comparison with:
I discussed this with my girlfriend and we could only come to one conclusion. In some bizarre Jungian 'collective unconsciousness' way the Jumpstyle people have tapped into the root of all dances, stumbling unto something as ancient as time that pops up every now and then. It's what makes us human, our collective history and stories and dances.
In other words: they managed to de-evolve, forsaking progress for jumps that fat guys at a country fair in Germany can do better.
But, hey, whatever floats your boat, man.