I've been busy at work getting some English docs together for the Wiki from the PUNI documents and Inside X68000. I've added a couple of simple example programs for "Hello World" using DOSCALL and for interfacing with the Capcom CPSF controller adapter. Keep an eye out for future updates! :D
http://www.gamesx.com/wiki/doku.php?id=x68000:x68000#software_development (http://www.gamesx.com/wiki/doku.php?id=x68000:x68000#software_development)
Lad, you are doing god's work.