I have a brand new Samsung Galaxy Tablet and I updated the system software and after it restarted, the home screen had been changed to a webcam-type pic of a fat Indian guy. Was my tablet hacked?? Avast doesn’t catch anything when I run it.
most likely a conspiracy ;D
ps: change your username on the forums to something else than your email address 
Android forum section is here…
avast! Mobile Security http://forum.avast.com/index.php?board=37.0 see sub forums at the top there
android forum http://androidforums.com/
Galaxy tab forum http://www.thegalaxytabforum.com/