Amazing Keychains
Huh? No really ... marketing premiums have never been so smart.
Check this from Popular Science - it's a slideshow of five keychain gadgets including a 4GB microdrive, a "biometric keyfob" that reads your fingerprint before letting you open the garage door, a "home heartbeat" device that sends you a text message if somebody attempts to break in or you left the iron on, a digital tire gauge and a handy-dandy password keeper.
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