Jothi, I don't quite understand the first part of the question... do you mean source control support? Out of the box MyEclipse includes CVS source control support, SVN support is easy to add (and may be included out of the box shortly) and a lot of our users also utilize ClearCase, VSS and other forms of source control along with MyEclipse.
Also we don't ship a chat system out of the box with MyEclipse, but that's part of the beauty of the Eclipse-ecosystem. I believe that functionality can be had from the Eclipse Communication Framework (http://www.eclipse.org/ecf/).
That sounds good about the SVN...I think don't think the chat option is available in any other IDE other than IntelliJ. So if one could get that either in Eclipse or MyEclipse, that would definitely be amazing.