Japanese mobile-phone giant NTT DoCoMo is replacing house keys, credit cards, and train passes with a phone that does it all.
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Determina's software provides maintenance-free protection against computer worms.
Gadgets that let you control computers with a wave or a nod could offer an escape from keyboards and mice.
Japan promotes first mass use in residences
Add Wi-Fi access to garbage collection and police protection as services that that many municipalities now regard as essential amenities.
A new generation of micromachines could transform everything from eye surgery to cell-phone reception.
Japan's strategy: enhance conventional devices