Heads-Up Helmet, Rolling Camera Are an Eyeful

Forty-one tech companies showed up at the DEMO Fall 2013 conference to introduce gadgets and apps that may or may not change your life (a Google Glass app that lets you buy things withBitcoins? really?). A few of these demos stood out among the electronic esoterica on display at IDG Enterprise’s annual gatheringin Santa Clara, Calif.

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