After 4 weeks I finally was able to get someone to send me a Grand Central invite!  I have the ability to send 10 friends invites.  So if someone would like an invitation to have an all in one phone number that will call all your other numbers you have to find you.  Let me know.  I can send you an invite via email.  I just my account today, so I don't know everything I can get, but I did get to choose my number from a listing of numbers they had available so that was nice, I could find out that I thought was easier to remember.