I'm unsure of what the plans are for camera controls beyond the pole locking route but I've found Shogun 2's default camera controls to be spot on (WASD + QE for rotation). These controls would translate over nicely for planetary navigation and the natural resting location for the hand is nice in a function way. I'm also thinking user defined markers (or saved camera locations) would be a good addition sometime down the road. Not only would this help with orientation problems without the pole locking but then you can also have a system in place to quickly jump from point to point. If these have already been suggested, then my apologies.