From a pure Windows perspective, you can definitely map a drive to a SharePoint library and access the files directly. The one draw back from this approach that I can think of is related to SharePoint's check-in/check-out functionality that can be enabled on a library. You may still need to go through the web interface to handle the check-in/check-out.

As for accessing the SharePoint library from a linux box using mount, I personally have never tried doing that myself. Based on this link (http://howto.unixdev.net/Linux-SharePoint.html), it looks like you need WebDAV filesystem drivers installed first. Also, here's two other links that refer to the that previous link, but covers a few issues that were encountered.

• http://sharepoint.stackexchange.com/questions/50022/mounting-a-sharepoint-filesystem-on-linux-using-davfs2
• http://stackoverflow.com/questions/20970618/mounting-sharepoint-shares-using-davfs2-yelds-empty-folder

I don't know if the information from those links are accurate, but it might get you pointed in the right direction. If you have a test SharePoint site or a test SharePoint document library available, I'd recommend testing this out there just in case you accidentally wipe out some/all of the contents on the SharePoint library.