Why does this need to be a hardware solution? Seems insanely hard to justify the cost/risk compared to offering a simple SaaS.
The same features could probably be achieved with a smartphone, without the security issues, and good headphone support.
Practical answer: we want to do cool things like "hover over keypad and say a name" and then you can talk to them. Only possible when we build the whole stack.
Thoughts?
At least if you did a dual SaaS/hardware offering you'd cast a bigger net.