ReaddleDocs, if you haven't used it, is one of the first document management apps to land in the App Store. Version 3.0 of the app recently hit the App Store and is a significant update that helps the retain its title as one of the top document managers and viewers for the iPad.
By far, ReaddleDocs biggest selling point is its ability to import files from a variety of online sources and save them for offline viewing. It can import files stored in online services like SugarSync, Box.net, DropBox, Google Docs and a handful of other smaller services. ReaddleDocs can also pull down documents from an external FTP, SFTP or WebDav server. It does support Apple's older MobileMe service, but not the newer iClo