Even worse, the reaction speed of the buttons isn't as fast as simply tapping onscreen; that Bluetooth delay makes the Duo Pinball feel sluggish even for the one game it's designed for.
What's next? An accessory just for Temple Run? This reminds me of the plastic junk I used to accumulate for console games, but somehow worse. Don't get the Pinball Duo unless it costs $10 or less: it's big, it's bulky, and believe me, you can play pinball just fine on an iPad using your fingers.