When did you sign up for an invite? I'm still waiting for mine. Also I don't think they are doing the invites gmail style (users send out invites). I think this time they are just sending out the invites to people on their list. Though if you do get an invite PM me. I've got a G1 and have been waiting for voice for a long time.
Here are some things you can do with google voice that are neat.
1) set up myfaves (or similar calling plans) to point to the google voice number and get free calls from/to that number (you have to set up GV correctly for the incoming calls).
2) If you give that number to people for incoming calls you can have it ring all your phones. For me this means have my cell phone ring my office phone so I can answer it there and not use minutes and have a more comfortable phone to my ear.
3) Make extremely cheap long distance phone calls without prepaid cards. (Their rates are better than most calling cards).
4) Make phone calls from your computer using VOIP
5) Make phone calls from you phone using VOIP (requires internet on the phone and certain apps)
I'm sure there are others....
If anyone has received their invite please post when you applied for an invite. If anyone has an invite to spare pm me
