Nice! It's funny, but I was just reading about a similar game being built, but this guy took 16 months and spent $58K building the app. Here's the post http://forums.makingmoneywithandroid.com/income-reports/1635... where he talks about it. His game isn't exactly the same, and definitely has a lot more going on, but there are some similarities for sure.
It seems like this is sort of a "hail mary" for him. He's hoping to make $600K over the next 3 years and he's planning on spending a ton of money on ads.