WebDAV

As of XBMC v10 (Dharma), XBMC has WebDAV client support for media.

Sources GUI
When entering a source path through the GUI, be sure to include the dav: to start the address.
 * dav://username:password@server/share/

To test this, you can open your web browser to http://username:password@server/share/ = Servers =

Mac OS X

 * Mac OS X- (free) Mac OS X has a built-in webDAV server, but requires setup from the command line.


 * MediaMaster Server - (free) -

Windows

 * Windows 7- (free) Windows 7 has a built-in webDAV server. If XBMC can't connect to Windows 7 webDAV server: use basic authorization. Disable anonymous authorzation and Windows authorization, use basic only and it will connect.

iOS

 * AirSharing- (paid) AirSharing is one of several iPhone/iPad programs that can also act as a webDAV server for XBMC, basically turning the device into a portable wireless hard drive. iOS App Store link