I never noticed before that if I open a Konqueror window, point it at an SFTP location, navigate to an image, and right click to open that image using GIMP, that GIMP retrieves from the SFTP URL directly. When I save that image, GIMP saves it directly to the server. Sweet! That means I can edit images on a server without copying them by hand. I was already doing this with text files, using Kate, but now I can do this with images, too! This is with GIMP 2.4; I haven’t yet tried 2.6.
Of course, the file dialog used by GIMP is the sickly GTK one, so this functionality of GIMP can only be accessed by opening files from Konqueror or the command line. The KDE file dialog is really nice and I wish the GTK guys would realize what they’re missing.