First of all, if dual-booting Windows has issues on the Mac, I'd imagine that he couldn't run Warframe very well natively (but who knows? I know very little about Apple's hardware and OS designs). That being said, I don't think DE is planning on expanding Warframe to other operating systems anytime soon or in the near future.
Curse client download for a mac. I predict that if they make this game compatible with mac too, then the ratings will be pretty high. Please make this game compatible with mac, too. Torrent for mac os. It's a REALLY good game.:) Showing 1-15 of 141 comments. But I have multiple friends who use macs and would love if they can play Warframe with me. Let's hope it happens!
It has already released PS4 and Xbone builds recently, and those take up a lot of resources too, I'd imagine. Combined with the active development on the PC, I'd be hard-pressed to say that Linux and Mac support would be coming anytime soon.