Okay, I've sort of been going on and on about this exhibit (but it really was too cool), so this will be the LAST POST about it. I found this link:
http://www.artinteractive.org/shows/patternlanguage/files/gallery.html, which shows some of the things on display, although some are older or different versions. Also the descriptions given aren't the same as the ones I read with each piece -- the ones I saw were much more detailed. But still, it gives an idea of the scope of the pieces, and implies that it's a collected exhibit that seems to travel to different museums. Huh. I sure don't know much about museum curatorship and all...