My wingman and I field tested this earlier with a group of 4 HBs and it was golden. It was a great way for me to kino the hottest one there who was my target, due to dares such as "Kiss the feet of the person to your left" and "Massage the neck of the person to your left."
It was also an all-around fun time. We were all doing stupid shit, laughing, dropping a great deal of our inhibitions.
It was a Droid app, so I'm unsure if you could get it on the iPhone or what have you. But I definitely recommend trying it out if you are capable.