Mojio[0] makes a neat integrated device that hits some of the same bullet points as this. I worked with some of their developers at an AT&T sponsored hackathon

Mojio[0] makes a neat integrated device that hits some of the same bullet points as this. I worked with some of their developers at an AT&T sponsored hackathon and had a good experience working with their API. Worth a look if you don't mind trading the open nature of this project for smaller packaging. [0]https://www.moj.io https://www.moj.io