Google is gradually turning into one stop internet
mall while they are continuosly adding internet based services in their product portfolio.
They has came out with
talk.google.com where they say they"
enables you to call or send instant messages to your friends for free–anytime, anywhere in the world"
Looks like its going to be a cool IM interoperable with other IM clients.. having interface to
gmail account, gmail notifier, and gmail contact book. Probably soon they will have (or probably they will have it) features like
1. Search your friend on google and add on google talk.
2. Look for work meaning using "define:" service by google.
3. Interface with Google Map to find out your friends location.
4. A mobile client for google talk leveraging google mobile...

Here is a
review on GoogleTalk by download Sqad.
Update:Its a warning bell for Skype.... I am getting very positive feedback from users all around. Users prefer using one tool rather than keeping several different tool for better interoprability between their functionalities.
Update: Looks like google is soon going to have an Internet browser