Transform your phone into an in-air mouse, touchpad mouse, a keyboard and more! Use MouseMote to surf the web from the comfort of your couch or use it to make your slideshow presentations more fluid.
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The most important function of the app is the airmouse feature. MouseMote allows you to control your computer mouse by moving your phone around the air. It works by using the in-built motion sensors in your android phone to detect the angle at which you hold your phone. The app translates the change in the angle into mouse movements which means you can control your computer mouse by moving your phone around! Try it out to see for yourself!

More info from: http://mousemote.com