My friend just got BBM on iOS... can't send him messages....

My friend and ex BlackBerry user just installed BBM on his iPhone 5. He logged in with his BBID and his contact list was restored.
Thing is I'm on BlackBerry 10 and I can receive his messages but my messages to him are not going through. The red cross comes up next to my sent messages.
His wife is on BBOS 7 and it's working fine with her.
Anyone else facing this problem?
I should mention in on the latest leaked OS 10.2 for Z10

Posted via CB10

Do you have BBM beta with channels? If so many people are having that issue right now, I'm not sure if there is a work around for it yet

Posted from my Z10

http://forums.crackberry.com/bbm-ios...m-back-852024/

Same thing as discussed right here :)