I just receive the DSO203 hardware (it’s well made, better than it looks in pictures) but I had a question related to the Cortex M3 used on it.
Do you consider o better idea to upgrade the hardware and use an CORTEX M4 instead of M3? Cortex M4 has a bigger frequency, dedicated MAC unit and a floating point unit/support. I think that the improvements will be huge and the cost will remain low. STM32 F4 is almost a direct replacement for Cortex M3 and the code can be run directly.
PS: I think I will mod my hardware.