Whether you do or dont have a GMail account the one thing you have to applaud Google for are their marketing skills.

By making the system 'invite only' it automatically puts a certain level of 'exclusivity' on the mail service and whilst, in reality, anyone can pretty much join Gmail, the perception is wht thy are successfully marketing here and, from what i have seen on other boards, it is viral marketing that is working extremely well

Regards,

Lee