Problem :
If Google chat can be integrated over http:80 seamlessly in the gmail interface in Chrome, why can’t Messenger? Is it a play on Microsoft’s part to prevent novice users from moving away from IE?
Solution :
Web Service Meebo does exactly that. Microsoft simply doesn’t see it as something that’s worthwhile.
You can also try http://demo.java2script.org/gtalk/ (it has GTalk, MSN, Y!, AIM and ICQ).
It can be, see MSN Web Messenger.
Once you sign in, you see a list of contacts.
To actually use it as MSN Messenger, click on sign in on the drop down menu in the top right:
You can then use it to chat to people on a standard web page (Port 80 (or 443))