Is nothing safe from the multitouch phenomenon? IBM has been granted a patent in the USA for a security system that would turn a floor into a multitouch surface that recognises who's standing on it. Once it senses an unauthorised person standing on it, it can sound alarms or call the police, just like traditional house alarms.
IBM also says
that the system could
be used to recognise
if a person was
lying down on the floor
in an unexpected location
for a period time
and automatically trigger a
call to the emergency services.