Since testing of the Dutch localization of the new software has been going pretty smoothly and a final upgrade was requested, I've gone ahead and upgraded the Dutch Wikipedia to the phase III Wikipedia software. There may be some remaining rough spots, please let me know!
The wiki's new home is http://nl.wikipedia.org ; the old UseMod wiki will remain at http://nl.wikipedia.com for a few days so that anything that may have accidentally vanished in conversion can be copied over. Then, the .com address will become an alias to the new .org address. (If there's a way to make the .com one read-only for the interval, that might be a good idea.)
A list of pages on the English wiki that include interlanguage links to the Dutch wiki is at: http://www.wikipedia.org/wiki/Wikipedia:Dutch_Wikipedia_language_links volunteers to help go through the list and make sure links to the English and other wikis are put into the Dutch articles are welcome.
-- brion vibber (brion @ pobox.com)