On a second note, Explosive Shell is playable and I am currently writing the weaponMgr and animationMgr. I feel that the actual mechanics for controlling a ship has been ironed out and a few more days, with a little tweaking, the controls will be solid.
As far as the design document is concerned, I do not think that it is in a state to review to the public quite yet, but should be ready to go in about a months time. Much of my development has been put on hold because of my last semester of college but upon graduation, development should continue unhindered.
Happy Programming GameDev Community!