It looks great. Dunno if this is abandoned or not (can't be bothered to read the whole thread) but I have an idea (also, not sure if it was suggested already) - Inertial Reducers.
Basically, what annoyed me in Wazzal was how hard it was at first to hit the planets, because of the momentum. What would be good would be a buyable addon for your ship that allows you to press a key to slow you down, basically like an airbrake minus any air (since we are in space... )
And, of course, an advanced version, which can be bought for, say... 1.5x or 2x the cost of the normal one, that slows you to a complete stop in about 2-3 seconds.
Or, of course, allow people to build and install these themselves.
Edit before harwe gets me again