Well, I now have my Didj, a Serial->USB breakoutboard, and a DJHI v2.0 prototype board. With these I’m able to get serial access to the Didj. I’ve flashed a new version of the Lightning Boot bootloader which jburks has been hard at work on. It adds a boot menu which is very useful for booting new kernels off of an SD card. jburks also has a preliminary kernel driver to access the SD card from within Linux.