Many Samsung Galaxy tab P1000 users are not able to get the video chat function on their tablet to work. Even the one available from the Google market does not work the way it should on the Tab. However, there is a solution to this problem.
First, download this build of Skype from here and install the APK on your tablet. Then, go to Advanced Settings, and set the following:
Force-enable video-calling > ON
Avoid setFPS > ON
Use valid preview surface > ON
Then you will have to tweak Rotation in Advanced Settings>Front Camera (270) to get your face to appear in the correct orientation if using portrait. That is it – enjoy video calling on your Tab