As of right now, there is no Microsoft Office for the iPad. This may be changing later in the year. Currently, Quick Office is the best way to edit Word, Excel, or PowerPoint files on your iPad or iPhone. With Google buying the company, it appears development will continue for a long time to come. Documents To Go was once a great product for mobile devices dating way back to the Palm days. They too have an office suite for the iDevices. In 2010 DataViz (a Connecticut company) sold Docs 2 Go and other assets to RIM (Blackberry). Personally, I think Quick Office is a superior product. You can buy it on your iDevice or through iTunes on your computer.