Here’s an idea: Tangible interfaces where data is transferred between the tangible object via the users skin. No need for wireless communication, and there may be a way of using this technology for sensing which tangibles the user is holding. Interesting stuff.
“Gadget geeks, prepare to get wired in a whole new way — researchers at Korea University in Seoul recently discovered a way to transmit data directly through the human body at broadband speeds by using the arm as a conduit. The researchers placed two electrodes 12 inches apart on a subject’s skin and were able to clock data transmission rates of 10 megabits per second.”