The Nav Circle in SR1 made it very easy to control rockets in a 2D game. It took me a while to figure out the best way to extend the Nav Circle into three dimensions. I ended up with basically two nav circles: one for heading and one for pitch. The end result is now called the Nav Sphere and it makes controlling rockets in 3D extremely easy.
The blue circle is for controlling the pitch of the rocket and the orange circle is for controlling the heading. You can click and drag the circles to adjust them or you can use keyboard inputs (or a gamepad) to control them. We will probably tweak the visuals a bit before release, but I'm really happy with how they've turned out.