One point of confusion for me has been how the different hardware talks to the PC and then to the software. I have seen that many wired devices are RS232, but I know the typical PC has 1 or 2 serial ports on the system board. So there mst be some device that converts RS232 to enet or USB or something. How about the 1-Wire stuff? And the RF stuff? If I chose CQC tonight, I still would not know what hardware to interface to it. Conversely, if I chose hardware (which I did) I don't know if CQC can talk to it and if so, via what interface hardware.
But that's not really overview stuff. If you put that in an overview designed for people just coming by and browsing, you'll have lost them already. Anything that would be designed to provide a broad overview for people who want the 10 minute tour would be more stuff like "you can make pretty interfaces to control your stuff and they might look like these" type of stuff.
We might be able to do a tutorial video that gets into some of that perhaps. But it's a big subject and we'd only be able to touch on the most basic aspects of it.