I just took one apart today. Getting the back off was the standard affair for Samsung tablets- run a spudger or plectrum all around the edges.
However, the model I am repairing, the SM-P550, has a bit of a problem. The digitizer is sealed to the LCD in the same manner as a phone screen.
Got the screen out intact, but now will have the arduous task of trying to separate the layers without ruining the LCD.
So, if you are looking to repair one of these, don't! The cost to get a whole assembly is $200 and not worth the price.