check this out: http://www.windowsondevices.com/. Looks like an Arduino/Raspberry Pi on steroids.
And MS is giving away a number of developer boards. Wonder if OpenHaB could run on these and take some of the load from Vera.
Winodws aside, the more interesting bit is the Intel GALILEO Single ATX DDR2 1066 Microcontroller Motherboard. At $60 it could prove interesting.