The features of the 2go version 4.0.5 for Java and blackberry users includes:

–A new lighter, brighter theme.

–A message indicator that shows when your messages are sent, delivered and read. Remember to make sure your friends are have upgraded to the latest 2go version for read notification to work(See settings + Help for more details)

–New smiley packs available. Click the button in the emoticon window.

–You can now edit your profile inside the application. Just open my profile and click on edit profile.

–Receive offline notification on blackberry and many other hidden feature waiting for you to explore.
Download at wap.2go.co.za

Source: http://loadedvilla.com/download-2go-version-4-0-5-java-blackberry/