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The rear cover of most phones is a ho-hum piece of plastic that serves no real purpose other than covering the battery. That is not the case here.

A number of pressure contacts power the NFC antenna and connect the induction coil needed for wireless charging to the motherboard.

With "wireless charging" listed as an official tech spec for the Nexus 4, we were anxious to try it out on our device. Alas, the phone doesn't ship with a wireless charger. Boo.

Two years ago, Google brought NFC to the smartphone realm with the Nexus S. It's been a long road, but the technology seems to finally be catching on.

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