As for rental: not likely. It's only available for digital download. It would be impossible to make a profit by distributing a game on a disc at retail for $10, That means that it would cost more and you would have to go out and buy it. No game distributor is going to do that, sorry.
It's been said that it should be ported to XBLA and whatever the PS3 has that is equivalent, which sounds pretty good but would also require a credit card.

