PipeRoll 3D New York HD
The developer has been giving away promo codes for this in the promo code forum and I was lucky enough to get one. I have played a number of the PipeRoll games and this is my favorite one so far. I am really enjoying it and it includes some neat new puzzle aspects. Also, it has some cool 3D graphics effects in the background.
At the start of each level, I find myself pinching outwards to get the maximum zoom the game allows. I do wish there was an even further zoom out as I like to see as much of the board as is practice and I think it could go much further.