Logitech Touch Mouse: Air Mouse Pro is one of the coolest apps in the App Store. With it, you can control your computer's mouse, enter text via the iPhone keyboard, run apps, and control media.
It basically turns your iPhone into a wireless control center for your laptop or desktop, without the awkward experience of using a full VNC client. Logitech Touch Mouse is that, except with just the mouse and the keyboard. So, 75% of the functionality, for 0% of the price.
From the App Developers: Touch Mouse by Logitech turns your iPhone or iPod touch into a wireless trackpad and keyboard for your computer.