No, I'd say we're agnostic: we neither believe there is a god nor believe there isn't one. We are without belief. Agnostic. We can
a) remain without belief
b) gain a belief
If we gain a belief, it can be
a) for the "right" god.
b) for the "wrong" god.
c) for no god.
mind you, there are shadings there too.
This reply was referring to my story about people being born atheist, and then choosing to become theist, or remain atheist later in life. Once again people don't realize you can be both atheist and agnostic, and insist on defining the umbrella term of atheism as the specific kind of atheism, called strong atheism. Also Mark's definition of "agnostic" isn't correct, which actually refers to knowledge not belief.
However I wonder if we can be born agnostic, since to be agnostic means to claim you don't have knowledge about something. I don't think babies can do that. But babies can lack belief, and be implicit atheists. It isn't until the person replies "No, I don't think so." in response to a theistic claim that they become explicit atheists, though not necessarily strong atheists.
And before you comment or send e-mails, YES we atheists are changing the meaning of "atheism" as it is commonly used. So what? The whole point of the change is that it makes more sense philosophically and the word becomes more useful. Besides the word has changed in the past. The Romans were calling early Christians "atheists" for crying out loud.
Update: I should have said "correcting" not "changing". See Austin's comment below for clarification.