Well, it's a two-edged sword.
As a community distribution it's much easier for us to push back release dares. There's no waiting custommers or cd printing companies and so on.
The other thing is, pushing a release date too much makes bad press as well. I think only Debian can do that

So we try to create a stable distribution, that doesn't have too many critical bugs (there'll always be bugs be it only because you don't have the hardware for testing everything...).
But we will also try not to push back the release dates too much...
Actually it's hard to make decisions like that, whatever you do, about 50% of the users, will hate you for it
Oliver