Jan 11th 2013, 17:36:21
there's a bit of confusion here, so just so everyone knows:
-the actual Windows Live chat service (the back end) is not going away (yet).
-The only thing that stops working on March 15th is the Windows Live Messenger Client for Windows. Other apps that connect to the service will continue to work
-The service is being rolled into Skype. IF you have Skype 6.0 or higher on Windows, you can sign in with your "Microsoft account" which is just your MSN account. You can then merge your existing skype and MSN accounts into one account, contacts from both will display and you can contact both.
-If you use the messenger apps on the Xbox, Windows 8, Windows Phone, or on the web, nothing will change on March 15th.
-You will be able to IM MSN contacts from within Skype.
However, it is not all sunshine and roses, and the whole thing is eventually going away.
In October of this year Microsoft will turn off XMPP access. That means that most 3rd party clients that use XMPP to connect to the MSN service will stop working (things like pidgin, adium, etc).
In March of 2014 the proprietary part of the protocol that 1st party clients connect to will turn off. This is when MSN will strop working altogether.
THAT is when everything goes to hell, as that means that the official built in apps on things like Windows Phone and Windows 8 will stop working. I'd have to assume that Microsoft will update those platforms to fix this. My guess is that it'll just be Skype built in and that's what'll be used.