I plan to have this board developed and in the shop and my lab in a 3-5 weeks time. Its a dev board for the STM32F407 but can be also modified using the Solder Bridges i placed for the STM32F10xx and STM32F2xx
This isnt a final its a preview. I am thinking of making the crystal swap-able using little sockets i have here. It will use the STLINK V2 which is a standard thing i guess.
Cheap Version:
