Some have mentioned the pages should go to some special wiki-- that's fine with me, but I *very strongly* feel they should leave Wikipedia now.
I'd be happy to host the pages on my site, and I don't think Jimbo would have any problem hosting them on the Wikipedia server either. But yes, they certainly need to be removed from the main Wikipedia (though the articles about 9/11 can link to them). That also seems like a good reason to keep "meta" around and to upgrade it to the new software.