Mark50789 & JF7S, I just switched from iPhone to Note 3 weeks ago and having same issues. One item that wasn't mentioned on this discussion thread was that Apple has to unregister your phone number internally. It's not unregistered by just turning off iMessage. Apple has to do this themselves. That said, I have tried Handcent among others and currenly trying out Textra from all the raving reviews. I still don't get consistent group messages, MMS pics from people and some texts don't ever even come over. I just changed my Apple ID and will log out of iTunes when I get home. Such a pain in the ***...