yes, I don't think Apple is going to call their OS '11' until the number 11 becomes really cool...which might take a while. In the meantime they will probably stick to OS X 2 (or OS X 20.0) or something like that. But if they keep their pace of a .1 update every year, we still have 7.5years left, so I would not worry too much about it right now 😉
And I'd be REALLY surprised if some AT&T web guy new more than anyone at Macrumors...😀