It seems like this is more accurately described (at least so far) as a temporary cessation in the decline rather than a reversal of it. The people that were still hanging on to XP computers are a relatively large group, but they are not a growing one. The next such event will be when Win7 falls out of support, and I suspect that that group will be larger but less likely to blindly salute the next Microsoft flag. That group has been growing as people reject Win8, but I think that people are examining the alternatives more than they might have in the past.
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.