Here's my first real webapp: Phinder, yet another PHP file manager. (Live demo at http://clrhome.tk/b/file/; SF project at http://phinder.sf.net/.)
So far it's not much more than a file list, but that's got as much of the look and feel of Apple's Finder as I could put in so far. You can navigate the file system with either your keyboard or your mouse (Ctrl/Cmd+Up/Down to open a folder/go up a folder, and arrow keys to select), and it lists files in Details format. Next I'll probably be working adding toggle buttons to folders to view them without reloading the entire file list.
EDIT: I probably shouldn't leave that thing public...
So far it's not much more than a file list, but that's got as much of the look and feel of Apple's Finder as I could put in so far. You can navigate the file system with either your keyboard or your mouse (Ctrl/Cmd+Up/Down to open a folder/go up a folder, and arrow keys to select), and it lists files in Details format. Next I'll probably be working adding toggle buttons to folders to view them without reloading the entire file list.
EDIT: I probably shouldn't leave that thing public...