It's not possible to have a real perlOS. Perl is not a compiled language, and therefore needs and interpretor to be understood. And the only way i know to have a running interpretor is to have an established OS to run it on.

sure, in C you have

OS written on otherOS in C -> compiled binary -> compiled binary runs as OS alone

but on perl it can't work the same.

os written in perl on otherOS -> interp on existing OS -> executable machine code -> can't stand alone as OS

You could have a layer2OS, for lack of a better term, that would have to sit infront of a shadow OS.

but, then again didn't larry wall say real programmers can write assembly in any language