Travis Goodspeed studied the MSP430 FET debugger, and redesigned it with a bunch of improvements:
A FET is any Flash Emulation Tool containing an MSP430F1612, including the FET UIF and EZ430 debuggers.
I am happy to announce my own variant of the MSP430 FET debugger. My variant is compatible with a patched version of the original firmware, but my goal is to eventually have open firmware as well.
Read the whole series to see how Travis reporposed the origional FET and designed his own.
New to the MSP430? Check out the MSP430 quick-start guide.