I wish they would all just federate, at least for text only messages. I know they probably have their own custom extensions for other media besides text, but underneath it is pretty obvious that they are all using xmpp.

So far we have:

ping chat
groupme
kik
ebuddy xms
whatsapp
imessage
chaton
facebook
google talk
who knows what else




What facebook or gtalk should really do is implement user aliases to mobile number and just take away all the whatsapp and kik and other ones. And yes, federate!


Edit, OH, now I see msn is using some xmpp too:

http://www.liveside.net/2011/09/14/m...mail-calendar/