This explains a lot. If my thumbs were 1/3 their present size, moving the blocks around on my iPhone probably would have been a lot easier. I recommend increas

This explains a lot. If my thumbs were 1/3 their present size, moving the blocks around on my iPhone probably would have been a lot easier. I recommend increasing the area you can touch to "grab" a block by at least 50%, and adding some sort of visual indicator of the position and orientation of the block outside the thumb-occlusion. Other than that, it's a great game.