Perl6 already is out - there's a Tetris-implementation using GTK for Niecza, a Perl6 implementation on Mono/.NET. The implementations are not feature-complete, but if that's your sole criterion, then neither C nor C++ are out yet.
The most feature-complete implementation - Rakudo on Parrot - is not production-ready, though, and currently somewhat stalled due to low bus factor: The object-system refactor (which made things like natively-typed attributes possible) introduced a lot of regressions, and the regex engine in particular is not yet fixed as the lead-developer was hit by real-life issues.
The implementations are not feature-complete, but if that's your sole criterion, then neither C nor C++ are out yet.
That's a little disingenuous. I'm a Perl fan and I'd like to use Perl 6 practically, but the fact that someone wrote a Tetris clone in one of multiple incomplete implementations of Perl 6 doesn't mean that Perl 6 is actually useful for much.
Not really. It just shows that feature-completeness may be a good metric when comparing implementations of the same language, but not so much when comparing them to implementations of a different language.
the fact that someone wrote a Tetris clone in one of multiple incomplete implementations of Perl 6 doesn't mean that Perl 6 is actually useful for much
The fact that there's a Tetris-clone in Perl6 indeed doesn't mean much. However, the fact that it uses GTK is an example of CLR interop, which opens up a whole new level of practical applicability.
