Gmail Invites

4 days after I joined Gmail, I have received 3 Gmail invites! I am starting to think that Google is going to kick start Gmail in the same style as Orkut, which is by invitation only by the current users, instead of providing a public form for everyone to register. However, it does make the Gmail invite something valuable, which sometimes means materialisable. It is just now a matter of doing the good, but the evil is surely tempting...