Google Talk makes it easier than ever to chat with more of your friends. If you use orkut, Google's free social networking service, you can chat or place Internet phone calls with your orkut friends using Google Talk. orkut friends will automatically appear in your Friends list, and you'll find out instantly if you've received a new orkut scrap. Learn more.
Now if your friends have chat history enabled, you can send them messages even when they're not online. Just enter a message into the chat window as you would normally, and they'll get it the next time they sign into Google Talk. In Gmail, offline messages can be searched and organized -- just like instant messages in their chat history. Learn more.
With this top requested new feature, you can send unlimited files and folders to your friends through Google Talk. There is no restriction on the file type or size and the peer-to-peer transfer is fast and reliable. Learn more.
If your friends aren't around to answer your call, you can leave them a voicemail message instead. Just record your voice after the "Meep" and your friends will get an email to their Talk contact address with the voicemail attached as an audio file. They can play your message when they check their email and save it for as long as they want. Learn more
Music Status and Music Trends
Listening to music while chatting on Google Talk? Now you can let your friends see what you're listening to by selecting "Show current music track" in your status menu. Your status message will change when your song does!
You can also choose to contribute your music tastes to Google Music Trends, and check out what Google Talk users are listening to across the world. Learn more.
That's not all. Google also still busy doing this things:
Pictures and themes
See pictures in your Friends list and chat sessions. Pick a picture for yourself and customize where you see your friends' pictures. Now you can also change the appearance of your chat sessions.
Google Talk for BlackBerry devices
Get Google Talk on your BlackBerry and chat with your friends on the go for free. You can even keep emailing and playing BrickBreaker while you chat. Download it at www.blackberry.com/googletalk (most commonly accessed via your BlackBerry).
Google talk is not as big as the other IM client such as Yahoo Messenger or Windows Live Messenger, but it's still promising. It's getting updated with lot of features that are available on those two big IM client and it's only a matter of time until Google wants to support all of the features and implement them in Google Talk.