I don't care about Messages (somehow most of my friends have an iPhone and noone use it), but it would be nice to have at least basic interoperability between t

I don't care about Messages (somehow most of my friends have an iPhone and noone use it), but it would be nice to have at least basic interoperability between the biggest chat software. I mean it's very annoying to have some apps like X, Y, Z for a few contacts while most of the other are in A and B. A nice feature of Windows Phone 7 at release was it's consolidated chat app that allowed to send SMS, chat with people on Fb Messenger, and people on Skype.