"Is Perl 6 being renamed?" at blogs.perl.org by ovid
Update: others have quoted what they feel to be the most salient point of ovid's article, so here's mine:
So yeah, there's bitterness and the Perl community not only needs to heal, but we need to find a way forward for both languages. The suggestion to change the name of Perl 6 to "raku" is effectively designed to make this happen. Perl 5 can figure out how to get beyond the branding issue that's been plaguing it and Perl 6 can do the same thing.
The way forward always starts with a minimal test.