I was pretty amazed at the announcement of the Omega2 board, which is a $5 ARM board along lines that I've been thinking a lot about:
Introducing the Omega2, the $5 IoT computer.
What the heck is an IoT computer? It is a Linux computer designed specifically for building connected hardware applications. It combines the tiny form factor and power-efficiency of the Arduino, with the power and flexibilities of the Raspberry Pi.
This thing has Wifi Built in.
While its specs are a bit lower than a raspberry pi zero, I don't think it matters. It's a product a ton of people could immediately build applications around, I think. This thing really would have a ton of IoT applications, (the Internet of things).
It's exactly what this forum is about!
Unfortunately, I don't think they're that serious about availability at that price. If they were, I'd love to include them in a write-up... we'll see if they ever write back.
In this case, I think it's more about marketing. I'm sure they'll be more than happy to sell a $75 starter kit in any quantity