2008/11/3 geni geniice@gmail.com:
"facilities for anybody to edit those works"
That means providing facilities on wiki to allow actual editing. Not provideing facilities to support off wiki editing.
Any kind of editing is dependent on client side support, and the extent of server-side support required to qualify is not further specified. You need a web browser to edit a Wikipedia article; WP by itself doesn't serve you any of the code required to do so, it merely implements an interface through which that is possible. So it does for images. The fact that the level of client-side in-browser support for image editing is currently lower than the level of client-side in-browser support for text editing does not negate the terms of the license. The important part is that we allow anyone to register an account and modify existing images through prominent facilities in the site.