Amazon echo is about 179 right now. I'm really hoping google can get this to be about 100 - 125. Based on their history of low cost devices with the two chromecasts, I think its possible.
They'd only need to be friendlier to international buyers than the Echo (which you can use elsewhere, but with some mucking around) and they'll do well.
The best and easiest features of Amazon Echo don't need the most difficult local support. Things like the shopping list sans buying, timers, weather, timezones, traffic, etc.
Do you mean, "this is a honeypot put out by the NSA, to see who wants this"? Or do you mean, "this is an attempt by the developers to see how the NSA tries to subvert, sabotage, or otherwise compromise their project"?
Enterprise has nothing to do with only 500 companies in the US.
There is no real difference.
Though some might say if you charge thousands and have dedicated salespeople, you're enterprise, even if you sell to a 25 person architect firm. Sales force is definitely though of as enterprise. While basecamp or twilio is more B2B. It's fuzzy, if there even is a difference.