When you're viewing files, a handy toolbar at the bottom of the screen allows you to jump to the beginning or end of a document and also gives you access to one of Files's other handy features: bookmarks. You can add internal bookmarks to long documents and then jump to them later; Files will also remember where you left off reading in a multi-page file and start at that point if you open the file later.

My only gripe with the toolbar at the bottom of the screen is that it disappears automatically after a second. It's convenient when you're scrolling through a file, but I'd rather have the option to hide or show it with a single tap like many other applications use.

When you're viewing a picture, the Files toolbar also has a button that's labeled "Add to iPhoto", but that's a little misleading. While the app seemingly tries to add the photo to your phone's Camera Roll, it didn't work in my tests. The image showed up in the thumbnail of the Camera Roll in the Photos app, but not in the Camera Roll itself.

Files handles many of the types of document you can view in Mail, like Word docs, PDFs, images, audio and video, even Safari WebArchives--however, it falls down when it comes down to viewing iWork documents, showing them instead as folders. According to the documentation, you can work around this by compressing the files into .ZIP archives. In my tests that worked for Pages and Keynote files, but not for Numbers documents.

In case you're worried about getting carried away, Files allows you to set a disk quota limit. Unfortunately, Files only tells you how much space is being taken up by all the files in a given folder when you're inside that folder; outside of the folder, it only tells you how many items are in that folder--not the total size--making it harder to keep track of where all your big files are hidden.

DataCase, by Veiosoft, is very similar to Files, but sports some even more advanced features for power users. Instead of using a WebDAV server, DataCase lets you transfer files over the network via a variety of technologies, such as OS X's native AFP, HTTP, or FTP. That makes it easy to connect from either your Mac or your PC.

But in most cases you won't need to fire up a client, since baked-in support for Apple's Bonjour technology means that you don't have to spend costly time inputting a server address: when you launch DataCase, your iPhone will show up in the Finder just like another computer on your network.