I'm already using whatsapp. It's cross platform. I don't know why Apple is putting that much effort in a messaging app only few people use. I'm very happy that they do, don't get me wrong but there are so much other apps that need attention more. Unless they make iMessage cross platform![]()
By "Few people use" did you mean the few 10's of millions of people that use it?
Side note: I don't live in the US.