Now you must be thinking what type of files are allowed and which are not. If you are thinking of upload music like mp3 wmv files well then forget about it because facebook is not going to allow you to upload these formats. If you are thinking about uploading .exe files then no Facebook is not going to allow you that. But you can upload e-books, comics, music videos and other small movies smaller then 25 MB.
In the year 2010 Facebook acquired one of the popular site drop.io. The site is about users will able to upload and add their content and was not compulsion to join the site. Even users were allowed to make conference calls between their buddies on the list.
I personally think that soon Facebook will add more attractive features for its users. So, lets wait little bit more for more fun and joy.