Well IIRC one2one published a binnary somewhere on the forums. But anyway, MacOS X is not currently well supported in rc3 and work is being done for rc4, so it has no real sense, apart from testing and reporting bugs, to have any binnary still, since it's not really functional.
You can be sure, thought, that when v2-rcX become stable for MacOS X binnaries will be available (and maybe by then, it'll be v2 stable too ;-) )
Greetings!