Cool Wired article about how Disney R&D is adding more interactivity
to their theme parks via the web and handheld devices:
"Vincent-Phoenix said she has also seen test products that allow
guests to interact with existing attractions. Earlier this year,
Disney tested handheld products that could help ambitious park-goers
find Injun Joe's treasure on Tom Sawyer Island or capture ghosts at
the Haunted Mansion, she said."