I liked your article. I do think that for the deeply embedded sensor space additional protocols are required. For example, CoAP is the protocol which ARM is pushing in this space while ZeroMQ is one of the protocols used to collect sensor data at CERN. Memory footprint is very important for smaller systems and these additional protocols do a better job of this.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.