Google has just announced a moment ago that they will kick out an OS update of Android 2.3.4 in coming few weeks. Google has also said that this update is to fix the bugs which found on recently released Android 2.3 and also this update brings Video Chat option to the Nexus S.
With Android 2.3.4 update you can now do video chat or voice chat with your friends, family and colleagues right from your Android 2.3.4 based Nexus S, whether they’re on their compatible tablet or phone, or using Gmail with Google Talk on their computer. With this update you can make calls over a 3G or 4G data network or over Wi-Fi.
Check Out The Demo Video Of Android 2.3.4: