I’ve finally gotten around to doing a bugfix release for my Butterfly Logger. For some reason it would not compile properly on the later versions of gcc. I am still using gcc 4.02 for my development as it yields smaller builds than the current 4.1.x generation.
You can now remove some of the LCD/Joystick interface to make it smaller so the bootloader can be used on the butterfly.
The link to firmware download is on this page