Forums / Cotonti / Core Labs / Ideas / Updated PFS system

I have been thinking about building a file manager plugin, much similar to the current PFS system, but with some added features. But as we're on the way to Renaissance, it might be good to just update the PFS system instead of building a plugin. Here's some of the features I had in mind for the plugin:

- Unlimited subdirectories (folder inside a folder)
- 'Physical' folder structure (not all files inside datas/users, but datas/users/userID/foldername)
- Drag & drop (jQuery/AJAX) for moving files
- JS/Flash file upload (like Gmail or Flickr)
- Easy file sharing between users/groups
- Google docs integration (optional)

What do you think, should it be a plugin or core functionality? In other words, should it replace the existing PFS system (keeping most of the DB structure though) ?