I'm American. This makes sense, if anyone was going to order awhat seems like a range extender, for a device that just brings you stuff you were too lazy to type, it would be Americans.
Googleglass problem. The interface is me yelling publicly. So not super sure that is going to be adopted well.
I use them in my home. Being able to ask it to set a cooking timer while my hands are full is pretty awesome.
Echo is one of those things where it became magically awesome by being somewhat more accurate than I'd expect. Also, Amazon is updating the service back ends, and it is now extensible.
"Requirements
* A U.S. Amazon account
* A U.S. shipping address (50 United States and the District of Columbia only)
* An annual Amazon Prime membership or 30-day Amazon Prime free trial
* A payment method issued by a U.S. bank with a U.S. billing address in your 1-Click settings
* A device with access to the Alexa Voice Service (such as Amazon Echo)"