I added some code across evolution to enable, save attachments/mails/calendar/events/addressbooks/vcards to remote shares. Also I enabled the file chooser to attach files from remote shares. I have attached a screenshot of the file chooser, showing remote shares. I have added a new camel backend class called CamelStreamVFS which can save files from any gnome-vfs backend. Ill be committing this patch to head sometime this week.