I just went and checked, I switched our main product over from ARV Megas' to ARM Cortex in 2013. The only downside is that the ARM's don't have as good sleep cu

I just went and checked, I switched our main product over from ARV Megas' to ARM Cortex in 2013. The only downside is that the ARM's don't have as good sleep current as AVR's do. And they don't have internal EEPROM. Other than that they are faster, cheaper, and have more RAM.