The iPad is a great tablet that is highly mobile and fun to use, but for those times when only a "real" computer will do, the LogMeIn Ignition app steps in to take control. This remote control app makes it a breeze to control any remote Windows PC or Mac as if you were sitting right in front of it. The LogMeIn interface is so tightly integrated with the iPad that it in effect turns any Windows PC or Mac into a fully touch-enabled system.
The latest version of LogMeIn adds the ability to move files between the iPad and any remote computer. This augments the remote control function to turn the iPad into a device that can be used to troubleshoot any computer, anywhere in the world. This app runs fluidly on the iPad and supports the full repertoire of the device's touch interface. This is demonstrated in the video, with the iPad 2 used to control first a Windows system followed by a Mac.
LogMeIn Ignition is not cheap at $29.99, but it is a full-featured remote control app that has real potential for business users. There are alternative solutions for the iPad for remote control functions, but LogMeIn is the best I have tried.