Ok, this is pretty cool - Philip Rieck has set up a user wiki for the Visual Studio 2005 Community Tech Preview.  The idea is to share hints and set up a communal "change log" of differences between versions.

So I've hung a link to it from our main wiki page - if you're using the CTP bits, go visit him!

I also learned just enough about the magic "External Wikis" shortcuts in FlexWiki to be dangerous, but I think I've now successfully cleaned up my mess and set things up on both wikis so that you can easily refer to:
VS2005Wiki
FlexWiki
WikiWikiWeb

Check out OtherWikis for more details.