It is absolutely a picture of an iPad, since you can see that it (the iPad) has been stretched out to accommodate the screenshot. The square on the home button isn't a square anymore.
Then why do all the hardware buttons (sleep, mute, volume, home) exactly match the layout of the buttons on the iPad? It looks exactly like a stretched out iPad with a mocked up screen shot.
http://www.walgreens.com/store/c/maylong-7-inch-m-150-wifi-m...