Apple has told Samsung that, in order not to infringe on their design, Samsung should create a design with:

-Front surface that isn't black.
-Overall shape that isn't rectangular, or doesn't have rounded corners.
-Display screens that aren't centered on the front face and have substantial lateral borders.
-Non-horizontal speaker slots.
-No front bezel at all. Thick frames rather than a thin rim around the front surface.
-Profiles that aren't thin

And the two really silly ones:  
-Front surfaces with substantial adornment.
-Cluttered appearance.

Yes, the Galaxy tab looks very much like the iPad, but they couldn't really design it any other way.