OMG! A free App that allows you to view and edit your Microsoft files (PowerPoint, Word, Excel, and more) on your iPad. First, go to http://desktop.onlive.com/ on your desktop/laptop computer and sign up for a free account (there is also a paid version). Second, download the App to your iPad. Third, upload desired files from your desktop/laptop computer to the OnLive server. Fourth, sign into your OnLive account on your iPad. Fifth, access your uploaded files from your Documents folder that will appear on your OnLive desktop.
The company is also working on bringing OnLive to Android tablets, iPhones and iPod Touches, Macs and PCs, and even to TV sets.