I got a promo code for this. It is no longer showing in the US app store for some reason. I've only played a few levels but it is simple, mindless, pick up and play fun. The levels get hard fast, and it is a plinko like experience. I'd like to see the addition of reverse tilting, so that I can switch which way the board turns when I tilt the phone. I'd also like to be able to adjust the speed/sensitivity of the tilting. I've had some audio glitches where there is no background music, and there is also a lack of sound effects. The graphics are 3D and pretty nice overall.
I'd place a review on the app, but like I said it is unavailable. The developer is here, so hopefully he can shed some light on the issue.