CloudOn is a free office software suite for the iPad that allows users to access Microsoft Office applications. The app enabled you to open, edit, save, and share Office documents through cloud storage services such as Box.net, DropBox, or Google Drive. Edit Word documents, Excel spreadsheets and Powerpoint slideshows, store them over the cloud, and then email them out to contacts, all within the CloudOn workspace. It's not perfect, though. One of the biggest gripes is that you need a constant data connection to use CloudOn, as all the processing is essentially happening on their end. Still, an interesting implementation of a cloud-based workspace. A good office suite, and free to boot!
Verdict: Essentially Microsoft Office but with cloud storage options. A good solution for on-the-go document editing, even with the condition that you need to be on a data connection. Of course, if you do need offline storage, viewing, and editing, look elsewhere.