Zen Hopper is a casual mobile game for iOS and Android. The concept is simple. Hop across a series of wooden pillars over a bottomless pit. The poles move faster and faster increasing the challenge. See how far you can go in Endurance Mode or see if you can complete the Belt Mode challenges from white belt to black belt. The iOS version supports game center.
You can also see the official trailer here.
You can find the app at the following locations