Haha, thought it was a joke at first, it looks f****** ridiculous. It 'sails its way back to you' haha, this sport can be really lame!!!
I think you and several other people miss the point. Sure, f***** the sailing back feature, but thanks to that balloon extending over the water (or forcing the board several centimeters up if it is on back) you can see your board in pretty wavy water conditions when carried away after a fuck-up. But you can do with cheap children floaties, too
Without that feature I would loose my board several times during first years of kiting (I'm using it still - board is money
). Of course on the flat its less useful