As you know, we (particularly, itemis France and Stephan Eberle) have been working for a few years on implementing a real-world smart meter with mbeddr. Together with Arie van Deursen we spent the last few months writing a detailed case study paper that evaluates this process as well as the resulting software. The paper has now been accepted for OOPSLA 2015. A preprint of the paper is now available for download..