I don't think we have the kind of $$$$ for this idea: I don't know
how much the related technology costs, but what happens to all those
transmitting tags that go on the shoes of the entrants at the Boston
or NY Marathon? do they get thrown away? wouldn't we like to have
them? Would anybody here like plot to "borrow" shoes at the end of a
marathon from about 80 unsuspecting and fatigued runners? Under the
ruse of giving foot massages?
Listening and <G>.