It used to be that you would have to modify the user_nicename record in the database directly. This plugin gives a nice UI for people to use.
Just testing out this app, it requires either a woothemes tumblog theme or the woothemes plugin, so far it’s very nice.
I’m finally getting around to playing with it, and man it really is fast.
Playing with servers and databases and they really aren’t that much fun for me 😛
Still managed to do everything right so far. I got one site moved, another created, and made an existing WordPress blog a multi-site setup. So far it’s been a very productive day, I might reward myself with a trip to King Kone later 🙂