I've created a group pool at Flickr for folks to upload and share live pictures from cameraphones, smuggled digital cameras, or any other imaging device you might happen to sneak into a show.
Want to join the fun? Sign up for a Flickr account and join the t.d.n group. Then, when you upload a new photo, it'll give you the option of including it in your group pool(s), including t.d.n.
Also -- Please be sure to post photos or scans of tickets, ticket stubs, posters, newspaper reviews, or anything else you might find that's related to the show in your town. This stuff is being cataloged and archived for future use/reference/etc. :)