Since key stuff has proved to require a more extensive rewriting than I had first imagined, we're planning to revise our goals for 0.0.4; a thorough source tidy-up and a nice fast allocation/GC scheme seem sufficiently good things to bring to the world that I would be happy to release Parrot in the next few days. I'll post some updated goals for 0.0.5 after I've discussed them with Dan.
As usual, if there's anything that you think REALLY MUST HAPPEN before release, speak now or forever hold thy peace. -- Some people claim that the UNIX learning curve is steep, but at least you only have to climb it once.