Over on Google Play there's this game called Cow Evolution. You're to evolve cows and make them poop out coins to buy more cows.
The question of whether evolved cows yield better meat isn't raised. :/ Hrm.
However, the game lets you collect HATS for your cows. It's all Valve's fault. They should have stuck with making a team-based FPS, but noooo, they also wanted you to collect hats (for two refined)... Okay I'm just being an asshat tonight. (Pun not intended, really.)
Not really interested in mobile gaming ATM, but was curious about the app landscape was in general.