I can't believe it was almost a year ago that I responded to this question X_X Time flies...
Some new updates, however!
An Android version of Town of Passion is being tested and, despite a few hiccups, seems to run fairly well. This should mean that Zombie's Retreat may also receive an Android version hopefully within the next couple of months. I apologize for it not being faster, the porting process is quite tricky.
A Mac version will not be likely until after the game is complete or near completion. I do still intend to have it playable on Mac as well!