As regards iOS Messages, it's possible. You just need a server to send/receive iMessages and interact with the App.net API. From my experience with http://irep

As regards iOS Messages, it's possible. You just need a server to send/receive iMessages and interact with the App.net API. From my experience with http://irepl.im http://irepl.im, I wrote an introduction to playing with iMessage: https://46b.it/blog/2012/11/01/hacking-with-imessage/ https://46b.it/blog/2012/11/01/hacking-with-imessage/ Happy to help out or answer Qs if anyone's interested in making use of it :-)