Locked into the Mobile Loop
Locked out of your Tokyo apartment? Forget the locksmith; call the phone company. Alpha Corp. has come up with a door locking/unlocking system that works with DoCoMo’s FeliCa IC card-equipped mobile phones. Similar systems have been around for several years, but this all-in-one door handle and locking unit can be installed on any existing entry without any special wiring. Previously mobile-phone activated locks were only available on new hot-wired apartment buildings. An extra subscription service even allows owners to check over their mobile if doors are locked or not (see also: Mobile FeliCa Trial Launch: Video Report from Dec. 2003).
Product release page:
http://www.kk-alpha.com/cp/topics/topics20050725_01.html