I really like the idea of an embedded IC with a proper dedicated communications coprocessor that leaves a main core more or less alone to do the application work - because time and time again I've seen projects using manufacturer supplied comms stacks with the application code on a single processor end up in all sorts of hell once they go over some undisclosed limit of processor time or interrupt latency or some requirement for some combination of peripherals (just finished up a project, where I was just doing hardware design, it was using one of the nrf52 parts with the nordic softdevice because the product needed bluetooth and I was instructed to make it the only processor for the system so we "didn't have to program multiple processors in production"... we had 2 programmers trying to make a non-trivial real-time application work alongside the nordic softdevice, and it was so painful to watch! Having that crazy binary blob running alongside our code made all sorts of things that would normally be fine into impossible challenges, and probably doubled the application development time)
Anyway - I'm definitely excited to see the PSoC6 coming out after such a long announcement time.... Mouser seems to be the next to receive eval boards to send out - if their backorder info is to be trusted.