I bought an Amazon Echo Dot on Black Friday as an experiment. I'm now this close from going all-in on an Alexa-based smart home. An Echo Show for the Kitchen, a few Dots for the kids' rooms and office, and maybe that lovely C lamp for the bedroom. It won't be cheap which is why I've been reluctant to commit. But now I have to rethink things after yesterday's announcement of the HTC U11 — the first smartphone with hands-free support for Alexa.