in reply to Why Change?
It's worth noting that perl 6 has nothing to do with perl 5 except Larry's name in the credits. There's another thread on perlmonks with LW saying as much; the perl 6 name is because there is a tremendous reputation that follows perl 5.
So why should you change? You shouldn't. Use the right tool for the right job. So far I have seen some object orientation advances that are up to speed with other languages, but there isn't a killer app yet. You won't find it on all the existing nix distros, either. I am curious as to the public reaction when perl 6 comes out and they see it won't run their perl code, cpan, and really is just a whole new language that says 'perl' in it.