I wouldn't count the arduino as an SBC, or at least not in the same class as the Beaglebone, Raspberry Pi and such. The Arduino is significantly easier to use, but it doesn't have an OS and isn't as capable.
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.