They sorta already do, it's called Echo. I'm not convinced there's a market for what you're describing, or at least not one that's necessarily worth the cost. A

They sorta already do, it's called Echo. I'm not convinced there's a market for what you're describing, or at least not one that's necessarily worth the cost. A lot of the cheap Chinese IoT devices generally available already go through AWS. People with the skills and desire to do that type of thing themselves are both a small market, and less likely to use AWS for the types of projects they'd be building with said device.