GTalk and GMail chat has a feature Invisible Mode, where we can’t see a user who is invisible. I would like to suggest a feature for GTalk and GMail Chat.
There should be a feature where if one of my friends is Invisible, then I should have an option to remain invisible to him/her also and visible to all others.
The feature could be something like – Invisible to Invisibles
and with in this feature an advance feature could be that invisible to certain few or visible to certain few only.