In our hypersocial world everyone forgets keys, but no one ever forgets their phone. Waleli, a Netherlands-based wireless company, has picked up on our lesser attention to the physical world and our larger attention to the intangible one, and created the GSM Doorbell, a mobile phone-activated door system that allows everyone from forgetful residents to trusted friends to enter a house via a literally phoned-in code from anywhere in the world. No more waiting for the nanny—or the locksmith.—Eva Hagberg

www.gsmdoorbell.com

The Samsung’s SGH-F300 mobile phone is a jukebox for your pocket.

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