Pies, Bones, and Droids
A nice list of small and affordable boards…but they all run Linux!
As a Mac/Windows-only user I just have to point out the small Windows 8.x boxes & USB sticks - like the Pipo X7 - for around €80 (Yes, that includes the Windows license…)!
They can’t match the GPIO functionality of the Linux boards (GPIO is simply non-existent), but are very good in running Domotica & webserver stuff (Mosquitto, Node.js, OpenHAB, Apache/PHP/MySQL etc) ;-)
Nonetheless, these blog series got me quite interested in those little LPC ARM chips! A very nice alternative for my Arduino/Jeenode stuff!