I'd say he is. Not only is he virtually always gay, but mentions of his gayness are usually acompanied by mentions of his predatory designs on Daniel. I think this may be due to the fact that he doesn't interact too much with most of the characters. He has slightly more contact with Daniel... Well, and also, everyone is always mentioned as having predatory designs on Daniel. (I would think that it was just fanon lameness, but the whole thing with Hathor needing human DNA proves that canon Stargate will always manage to outdo fanon.) From what I've seen of Davis so far, he is rather neat and tidy, maybe even stylish, and he doesn't hit on the female characters. He is also hot. This means instant fanon gayness. (Some sort of fashion sense + hot + single = couldn't possibly be straight equation) Of course, I've only seen seasons 1-3 and a bit of 4 at this point, so I'm hardly a Stargate expert.