Star Odyssey, our upcoming new RPG for the Genesis / Mega Drive, went into production just as we sold through our initial stock of Zaku. This game is scheduled for an early 2011 release, at which time we will finish production of our replacement stock of Zaku, and begin shipping copies to all backorder customers such as yourself.
We appreciate your order, and thanks for your patience. If you have any additional questions, you are free to post them here at the forums, or send them directly to me via e-mail (for the quickest response).
Have a nice day.