retrolefty
Yes that applies. It was new in version 0018 to have multiple folders and each one to have its own "boards.txt". It makes it VERY easy to add a new board.
What I have done is modifed the arduino core files to use register based #Ifdefs instead of cpu based #ifdefs. With the exception of the "pins_arduino.c" file. Nothing needs to be changed for a new cpu. From my list you will see I have almost all the bases covered.
Mark