The Perl6:: and Pugs:: Module on CPAN are mostly written in Perl 5, and emulate or implement Perl 6 features. For example Pugs::Compiler::Rule partially implements Perl 6 regexes, and is used as a pugs backend.

If you're looking for Perl 6 modules, look in the pugs svn repository under ext/, it should contain most Perl 6 modules so far (except from those developed for the November wiki engine, which can be found in the november repository)

I know of no recent progress in the area of cpan6 or c6pan or whatever it will be called.