I mean, yes its cool and yes I would like to try one someday. Watching those guys tool around in the video though... the cynic in me really wants to know how the bicycle kick turning a propeller is even close to as efficient as just kicking a flipper. It looks cool and fun, but its not like those dude were swimming around with the ease of dolphins, looked actually a bit putzy.
Can someone please buy one and stage a flipper versus propeller race? I'd watch that.
edit - all the product shots show flat pedals, but did anyone else notice the divers were using MTB shoes and clipless pedals? I think they were Crank Bros Eggbeaters.