Product: Mobile > Cell Phones > T-Mobile Cell Phones > SGH-T839
Instant messaging is available on the Sidekick 4G in two ways: Google Talk which is pre-installed or third-party apps from the Android Market.
Google Talk -- From any homescreen tap Apps > Talk
Note: Google Talk is not compatible with Windows Live Messenger, Yahoo! Messenger, or AIM
For more information on the SGH-T839 (Sidekick 4G) click here.