After youfind a userusingContactSearch, you canright-clickthatuser'snametotake action, such aschatwiththatuser, send a file, orlaunchan instantmeeting.
The system also provides a mechanism for a user to selectively establish contact relationships or connections with other users, and to grant permissions for such other users to view personal information of the user.
The true promise of Google Talk --and the company's likely goal--is to eventually provide full telephone capabilities, and to make a user's Gmail address their primary point of contact, on or offline.