I vote not to do that on some mythical version number (and since Rakudo will likely continue to number its releases by release month, it won't ever reach 1.0), but rather by the number of posts.
If there are a few weeks were we see more Perl 6 questions than Meditations (for example), it may well be worth to start a new category. Tying that to a particular release of a particular compiler seems impractical to me.
Perl 6 - links to (nearly) everything that is Perl 6.
Don't underestimate the power of 1.0. Especially the press and the semi-informed public needs some point of reference onto which they can pin the "release" of the "first finished version". Not to put up a version 1.0 (or some appropriatly named milestone) might be more truthful but it would be missing out on a big marketing opportunity.