This doesn't make a lot of sense to me, other than TSMC trying to show that it's being responsive to the issue of tight 28-nm capacity. How could it make sense for TSMC to maintain a Qualcomm fab next door to an Nvidia fab and not retain the ability to run some wafer lots at both facilities in the event that one of these companies encounters a lot more demand than the other at, say, the 20-nm node? How would it make sense for TSMC to say to Qualcomm, "Sorry, your fab is full," even though we have plenty of capacity in other dedicated 20-nm fabs, we can't use it because those fabs are dedicated to single customers.
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.