@Duane: If it's not visual, can it still be called augmented reality?
Most certainly- but we tend to refer to AR experiences that don't require real-time rendering as "computer vision", which is really utilizing any of the sensors (including the camera) to access information or trigger actions. Image recognition and visual search is a very good example of this. Also using sensors like GPS (the Nokia example mentioned earlier) is a popular form of Computer Vision.
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.