This is a good point. Sprint won't have decent coverage till at least end of 2013. I never got the Wimax i was promised either!
Yes, I get the point about waiting for the next big thing being a never ending thing.
But like you say waiting for the next best thing in a month or two is different

Having waited this long, I don't mind a few weeks more if there are going to be some announcements. Is there some site that has rumored dates?
As far as specs go, I'm more concerned that development for the GS3 might fall behind compared to the Nexus. I think its unlikely the next phone will really be that much of a jump over the GS3.
But I don't want to wait till the end of 2012. Then the same cycle starts again with rumors of the GS4 etc in the summer