in what language is it written?
the kernel is almost completely written in C, with the exception of the core interrupt handling (one small file) which has to be written in assembler. (that means it should also be relativly easy to port the whole thing to another target, all it needs is a timer interrupt)
Any chance this will go Open Source any time soon? :)
like i said before, thats the plan :) however i am a bit reluctant to do it just right now, both the kernel and the applications must use a modified library for cc65. and this will/might break at any time when cc65 is updated.... meaning i am not even sure if i can build it myself right now =P