It seems that G-mail is finally going public. A long time ago I registered on their info-maillist and today I got the first mail, from the list, offering me a gmail. Must be the last step before ending the betaversion.
Seems like gmail is opening up. I just got 50(!) invites on my account, so just post a message and you´ll get one. If you dont know what gmail is, and has a hotmail or something like that, its certainly woth a try!