We're expecting booth space to start at at around US$5,000, but that includes network access. Sponsors get their name on conference communications and on an afternoon or evening activity (the better to schmooze with), and a discount on booth space. Since each activity period would include a meal, it's possible that conference attendees may not have to purchase their own food at all, depending on how many sponsors we get.
Sponsorships and booth space will be sold on a first come, first served basis, as both will be limited.