I'm excited by the idea that entry level embedded stuff like Arduino and RPi will keep feeding a new generation of tinkerers, in the same way PCs did (speaking as a child of the 80s). With the amount of plug and play sensors and code nowadays, it seems like imagination is the only limiting factor for inventing useful physical things. I suppose this has been going on for a while now, but I'd say we've yet to see the dividends as it takes a generation of kids to start really being creative with the possibilities.