You should easily find investors for it.
As a person who invest and invested in a lot of bitcoin startups, I don't think any of us want part of it
Does everything need to be "a money maker"?
I also like bitcoin because i's a financial system with many APIs that are open for everyone and allow people to build stuff just for the curiosity and he fun of building.
No, I don't think there is a real need for a device like that, but I can appreciate the technical skill and the tinker spirit behind it.