I thought I should act on Andre's suggestion at wikide-l that this proposal be discussed globally, so I forwarded and translated his post in my previous message. If you take a look at the test upload form, it's in German, but if any non-German-speakers have questions about it, feel free to ask. Now for my comments.
Field 6, as with the current form, asks the user to confirm that the copyrightholder agrees to the licensed use. Field 4 asks who created the image and/or what is the source. Field 5 asks you to choose a license; the options provided are GFDL, CC-by, CC-by-sa, and unknown. As indicated, if you choose unknown, you get a message first about our policy for using licensed images. All of these fields are required.
I think Andre has done excellent work, and this upload form should be implemented on all Wikipedias as quickly as possible. I actually care less about making users input licensing information, but as I've said repeatedly, we absolutely need an upload form that *requires* source information. This matters even more for Wikipedias that, unlike the German Wikipedia, allow fair use images. According to international law, we *must* provide source information in order to have copyrighted images under fair use (or as the Berne Convention calls it, fair practice).
--Michael Snow
wikipedia-l@lists.wikimedia.org