I'm glad Google's now developing technology to spy on your heart rate, temperature, and the location of both you and your friends. We don't need anything to be private. Hell, why not tweet about how bad you smell. Let's invent scratch-and-sniff tweets that post themselve automatically without anyone realizing it's happened... until it's too late.
If you see a phone, tablet, or anyother "oder-detecting" device, for the love of all things private do not buy it. For that matter, don't even go near it!