The Amazon Echo, brought to you and sponsored by the NSA!
Seriously though, BROUGHT TO YOU AND SPONSORED BY THE NSA!
The first flaw that I see is that you have to take it with you room to room and plug it in each time. It needs remote microphones. And how hard is it to connect to the TV, radio and sound system. I do imagine there are smart doogles to add to garage door openers and toasters and such, but how much would each cost? And can the alert word be a one syllable word like “hey?”