As far as I know, the IDE is already free with compilers(non-optimized versions) for every series (PIC16/18/24/32). BTW here is a free tiny board which I have designed for hobbyists. All source is free and downloadable:
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.