Walking up to your Mac to control it with a mouse or trackpad is so 2012. The Mauz aims to turn your iOS device into a portable and even more capable input device, via a dock connector add-on and some nifty software.
The Mauz offers a full computer mouse interface, with right- and left-click and scrolling functions, that activates when you connect the hardware to your iOS device (currently 30-pin, but a Lightning version is also in development). But you can also use 3D navigation (think Wii controller) to rotate objects; program gestures to say, move between open webpages in a browser; and take advantage of your device's built-in camera to use pre-programmed and customizable visual gestures to control actions based on hand movements.
Spicebox, which showed off the Mauz earlier this month at CES 2013 in Las Vegas, is actually looking to Kickstarter to help crowdfund the Mauz's development; it still has quite a way go to reach its $150,000 funding goal by March 8. But if all goes well, you may see it on sale starting in August.