Unfortunately, I really can't afford it at the moment. Apple demands the use of a macbook + a hundred dollar certification just to export a copy of the game to mac, so I'd need to spend a couple hundred dollars just for that.
I'm hoping the game will become more popular and I'll eventually be able to justify the expense, but we'll have to see how things develop in the future!
In the meantime, I've greatly optimized the next build of the game, so the browser version of the game will run a lot better! So that'll always remain an option