This is clever. QPAU embedded a pair of buttons at the base of a tempered glass screen protector, one on either side of the iPhone home button. A tap on one of the buttons triggers a tap on the corresponding nav button towards the top of the screen.

This works on any app with a nav bar. As an example, if you fire up the Contacts app, you’ll see a nav bar at the top of the screen, with the word “All Contacts” in the middle of the nav bar, a “Groups” button to the left, and a “+” button to the right. With the screen protector installed, a tap on the button to the left of the home button taps “Groups” and a tap on the right button taps “+”. Sort of a remote control, making it easier to tap the top of the screen with one hand.

Here’s a YouTube video showing this in action.

The first half of the video is the installation process. Jump to about 4:10 in for the demo itself. In the demo, he launches Tweetbot, then taps to the right of the home button to create a new tweet (new tweet is the button on the right side of the Tweetbot nav bar). Pretty cool.

Before you plunk down your $9.99, be sure to read the comments on the Amazon page. I haven’t used this myself, so I’m not sure how well it works. But I do love the idea behind this product.