I would like to be able to have a basic OS and a basic file system for the high end MSP430 probably the MSP430F5438. I know I can go with something like FreeRTOS , IAR PowerPac or Micrium to name just some of the options for the OS and file system. However I would like to be able to also have the ability to load little applets or threads at a latter time ideally getting this extra code off of the file system. My goal is not to have to reflash the entire device to change or implement a function on the embedded device. Not sure where to head to implement this ability or if I need to switch to another processor like an ARM.
The MSP430 is a great controller, but if you want to run an OS, and load apps without burning them to flash, you should probably switch to ARM (another great platform with many ARM based microcontrollers).