yeah for those who downloaded the testing gtalk but download the new gtalk offically from google site to enjoy the following features which are not in testing gtalk

> Showing current tracks in both Busy and Available Status
> Clear Custom Messages
> Signout in the status message drop down box
> Notification when a friend comes online
>another option to share music with Google MusicTrends
   Enabling this will share your music listening history with Google Music Trends and will turn on Personalized Search.

Notification when a friend comes online have always been there, but have been automatically off, so you had to select the option to have notifications.