This is with Tortoise, Go inside of interface folder, select all and right click any folder and select SVN Update or by File>SVN Update
Dont worry about those not SVN addons folder when select all, Tortoise will skip those not SVN folders. Have fun.
Good try, but it skipps all folders not checked out once with svn.
Updates oSkin (checked out) and skips ora2, detox, oCD... (all downloaded from http)
I am gonna read that link from tekkub now.
that irc bot thing looks good :)