What the cmda iphone really is? I've googled it and it seems I can only find nerdy tech lingo and can't get a straight forward what it really is. And also whats the big deal with the iphone going to verizon? I don't understand how its exclusive to at&t when you can infact get it with any other carrier. Is it because you can only get it first exclusivly thru at&T? Please someone explain all this crap to me thanks.