Since Unity 3.5 came out recently and I’m about to get buried in another game jam, I decided to release Pile of Kittens tonight. There are now web (Unity plugin), Flash, Windows and Mac versions for you to try at Stttutter if you feel so inclined. There are a few bug fixes, but nothing very new gameplay-wise. The graphics look much better with the anti-aliasing found in the web and desktop versions, though :).
The desktop versions have the best prettiness/performance possibilities, and also have configurable controls. The Flash version works in Linux!