it's like a knoppix, it's a linux on a CD, no need of a hard disk at all, only a cdrom
and as display, it's like the pdaxrom .... on a bigger screen, it's fun
and it's not an emulation, it's only the pdaxrom for another processor with a lot of things installed on it (a lot of packages + gcc)
so you can theorically compile programs or the whole rom with this CD, but i can't say how