It seems to be the same concept YesNoMayB.com has, but since the one posting on Techcrunch last year I haven’t heard anything else from the south-african startup. Here is a visualisation (you can see the “Techcrunch-effect” VERY well ;-)
Anyways, Rouven and Reto seem to be pretty serious about Yepnep, since they start with a joint stock company. Plus the name seems to be very cool and suits perfect: Yep = thumbs up, Nep = thumbs down → it’s so simple, I love it :-)
Good luck you two with your new venture!