I have the 3rd iPad.. I have my iMessage on but i cant send messages to other iPhone users in other countries.. I have them added in my contacts, and i used to be able to talk to them through iMessage but then one day i got a red exclamation mark next to their name and wasn't able to press the send button.. I have a blackberry and i have whatsapp installed and i have their numbers added the same way as in my iPad and they do appear there and i can talk to them too but not on iMessage... It just stopped working.. Do u know of any solution to this?