Cell phone companies have been showing projectors since 2009 so that's an easy feature to add to a tablet, of course the immediate challenge is battery life with such a feature. I'm on my keyboard constantly and therefore am not attracted to a tablet even with a portable keyboard because then it's a 'wanna-be' laptop.
One of the limitations of a tablet as I see it, is its limited screen size.
If someone can develop a tablet which is like a miniature hand held projector then the image can be focused on any size viewable screen, wall or paper and that will increase its application areas many fold
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.