Upgraded my devices this afternoon

Netduino

(http://forums.netduino.com/index.php?/topic/5583-netduino-firmware-v420-update-1/)

PWM greatly improved (Robot goes a lot better now)

Netduino Plus

(http://forums.netduino.com/index.php?/topic/5582-netduino-plus-firmware-v420-update-1/)

50% more RAM than previous versions so less nasty bodging to reduce code size