The argument isn't about the devices on that poster. It's about Samsung's a posteriori "design" and marketing process. Their product guy's "can't design patent a black rectangle" comments are a bit disingenuous:
http://copyrightcommerceandculture.com/wp-content/uploads/20...
Also worth noting their tablet PR screenshots, like their boxes, have stopped using the iPad's portrait icon array and started featuring landscape TouchWiz widgets instead.
They were fully aware of what they were doing:
Boxes before: http://www.thegalaxytab.com/wp-content/uploads/2010/10/galax...
Boxes after: http://forums.appleinsider.com/content/type/61/id/9172/width...