I works like a gem in *nix environment.
but I tried to install this in MsWin32, it failed with errors, I tried to clean up some, but got stuck up here

C:\Perl\cpan\build\Zoidberg-0.96-J2r7ha\bin>perl -IC:\Perl\cpan\build\
+Zoidberg-0.96-J2r7ha\lib zoid
POSIX::tcgetpgrp not implemented on this architecture at C:\Perl\cpan\
+build\Zoidberg-0.96-J2r7ha\lib/Zoidberg/Contractor.pm line 75.
Zoidberg was not properly cleaned up.
[download]

I already had issues with installing this module under windows using cpan, some tests failed.
If you point-out an alternative shell like this implemented in perl with vi-mode on the commmand line support available. It is very much appreciated
I got this zoidberg idea a while ago Vi mode in Psh