I don't know the official release date off hand, but it's the game of the month for Z-Force for September (I have a copy) so it's gotta be soon. I don't see it in the store at the website, and I don't see it at CoolStuffInc (surprisingly).
The Z-Man page is here. I'll see if I can find any exact release date, but it's gotta be soon.
I have it since Essen Fair last year and it's definitely not a game for adults who are experienced role playing gamers.
However we picked it up for teaching children the fun of RPG's and for this reason it is a wonderful game.
Easily to teach and explain and since the difficulty increases slowly the kids had a blast playing it.
Pick it up if you want a fastplaying game (in which even the gamemaster can learn the rules while progressing through the adventure), but this game is not anything for someone you can already play games like Descent, Talisman etc (kids were 7 and 11).