I think this wave may have been started by Arduino, but I mean... Raspberry Pi? Teensy? MBED? Any microcontroller manufacturers' dozens of reference designs? H

I think this wave may have been started by Arduino, but I mean... Raspberry Pi? Teensy? MBED? Any microcontroller manufacturers' dozens of reference designs? How much more open hardware do you want? I'll be thrilled once reasonably sized phones and laptops are reasonably straightforward to get with open hardware of course, but there is lots and lots of open source hardware.