Found a couple more related things while creating experimental aircraft. A craft covered in more wings than should fit can generate a decent amount of lift by spinning (q & e key spin, I mean), but is unfortunately unstable due to the number of wings physics-ing those they overlap. Wings fly out at random, and the craft are liable to explode without warning. Further, craft with less wings than the required amount to generate lift above gravity's force can be incredibly effective at slowing a craft entering the atmosphere by spinning. As the ability to spin increases with velocity and air density, a craft covered in wings can essentially reverse direction if pointed upwards, falling downwards, and spin in initiated. Similarly, a spinning highly-winged craft pointed downwards while approaching the ground can maintain speed which due to air resistance would normally be impossible; a craft falling from 5000 meters achieved an impact velocity of over 300 m/s, whereas most craft will be slowed by air resistance to about 100-150 m/s.
The most interesting thing I found, though, involved a heavily winged craft with an ASAS module in control of the wings. Starting from a velocity of about 177 m/s, I pointed the craft a few degrees above the horizon, enabled the SAS, and watched as it climbed from an altitude of about 100 meters to a full 9500 meters, losing velocity only as the atmosphere began to thin. The ASAS module kept the wings in a sort of oscillating motion, creating enough thrust/lift to go at an extremely shallow angle from 100 meters to about 7500 without a drop in speed. Beyond that, speed dropped off sharply as the atmosphere dropped off; but still, to reach such heights entirely unpowered is quite an interesting sight. In short, wings allow some really interesting stuff at low altitudes, though methinks their usefulness for serious spacecraft is relatively limited; at least as far as the effects found in these experiments go.