The app allows you to create and edit Microsoft Powerpoint, Excel, and Word documents and store them on the phone, Google Docs, Dropbox, or a number of other locations. It also includes a file manager that lets you browse ZIPs like you would folders, view PDFs, and take pictures with your camera and paste them into documents.
If you're in a profession where you reasonably might need to edit a document, spreadsheet, or PowerPoint on your phone on the go, Quickoffice Pro is definitely worth a look. It was a top-10 finalist in the Mobile Apps Showdown at CES 2011 and is listed as one of the 10 must-have apps by the New York Times.
If you haven't already gotten the Amazon Appstore on your phone, now might be a good time to take the plunge. It's free and the water's warm.[Amazon Appstore]