(Assuming you're asking from a really long distance out) Well, there's two current implementations of it (with Rakudo being actively developed): http://www.perl6.org/compilers/features

As for example code, there's some on http://rosettacode.org/wiki/Perl_6 in the bottom section. With all that said, is it production ready? I don't know. I've heard people joke that Rakudo crashes every couple hundred lines of code it executes. Though the parrot developers have said that parrot itself is extremely stable, and they've had decently sized programs running for some time on it. That, and Rakudo is currently working on two new backends besides parrot: JVM and a new vm called MoarVM.

While Rakudo certainly crashes more than anyone wants, it doesn't crash anywhere near as often as you suggest. It's a good thing, as it is implemented in itself; you couldn't get to line one of your script without crashing if it crashed every couple of hundred lines.

Actually, I don't know when the last time I got a random crash in Rakudo was; it may have been years ago. Getting a crash because you ran out of memory, on the other hand, definitely can happen in bigger programs.

No. There have been various test and development implementations over the years but regardless of bugs they're all so slow as to be of questionable utility for any real work. It remains safe to ignore Perl 6 for the time being.