I've want to create a nontechnical hackathon at my university around the idea of making the university better for a few months now and the biggest issue I've got is fighting the connotations of the word hackathon.
Startup Weekend is great because they've established this brand around what is essentially a hackathon and doesn't necessarily scare away nontechy people.
I'd be interested to see what the hackathon to change the world ends up attracting in terms of talent type and background and what the final name for the event is.