This hardly counts as a hack at all, really. I didn't write a single line of code. It's simply data from http://nnf11.nnfestival.org.uk/ wrangled into a JSON file, and dropped into a timeline widget from here: http://www.simile-widgets.org/timeline/
Ideas for taking this project forward
Well, it could do with some design love, for sure.
I've only tested it in Firefox 3.6 so Lord only know what it'll do in other browsers, or how accessible it is.
Given the Festival itself only lasts until the 21st of May, it's probably not worth doing much to it this year...
Estimated costs for taking this project forward
About the data used for this project
Scrapings from http://nnf11.nnfestival.org.uk/
Add photos by tagging them with rewiredstate:project="festival-timeline"