Be aware that the github project linked in the first post is a different "Accelerator" to the one in the facebook image. The first is an experiment in interfacing a 68020 to the 68000 socket and has minimal performance improvement over the 68000 (using a separate fast ram expansion may help). The image is of a 68030 accelerator board with fast ram, FPU and IDE which is still very much under test and development (revision 1 has some PCB issues). If you click on the parent "terriblefire" directory of the github you'll see the tf530 project but it is only a placeholder for now until the board has been proven.
