My wife and I got our first iphones recently (iphone 4s) and are just beginning to learn how to use them. We have been playing a couple games recently (Yatzy Addict and Solitare) and I have not been able to use the "invite friend" feature. My wife and I are both each others "friends" and she has no problem inviting me...but when I invite her it get a failed invite message. I assume there is a setting somewhere that is just set wrong but I can't figure out what it is. We have played with the phones...on the same network, in the same room, doing it the same way and her invite works and mine fails. Does anyone know what I might be doing wrong?