My intent was to reject the "Italian Style" Arduino board shape and use a simple rectangle the same size as my previous "Freeeduino" board (as sold by NKCElectronics.)  But on comparison, while I removed the funny shape, I forgot to move the left edge of the board, and it's about 6mm shorter than the Freeduino.  That's not a big deal, but I'm annoyed with myself, particularly since it would have made it easier to fit those power supply modules...