Those of us with Google smartwatches have had this functionality for some time. Its very convenient to just whispers, "OK Google remind me at 3pm tomorrow about the dog's vet appointment." Or "What's the weather in Reykjavik?" Having this functionality on your phone, tablet, or computer is very different than having it right in front of you at all times. Its hard to quantify, but there's an inconvenience of pulling out a phone or a tablet and even then muscle memory dictates that you'll probably just start typing and swiping instead of speaking.

Having this all tie in with various smarthome appliances will be interesting as well. Sure, I can open my garage door by using an app on my phone but I'd rather just say, "Open the garage door." I think ultimately we prefer to do things like we're dealing with other people, not machines. Amazon's Alexa was a good first step towards this. I'm glad Google is chasing Amazon as Google has become a Microsoftian organization that only does well when they're chasing a competitor or having one right on their heels.