Google officially announced the android 2.3.4 last night and now it is available for download. We have already published the method of making the video calls by using the Nexus S on android 2.3.4. Now simply download the android 2.3.4 from the link given at the end of this post and follow the method we published earlier and start enjoying the video calls on your Nexus S.
Important Note: This version of android 2.3.4 (GRJ22 ) is only for Nexus S (I9020). Owners of other android devices and tablets have to wait for some more days or may be just some more hours.