The Planetary Resources programme seems screwed together pretty tight, by some very good people. If they can get it off the ground (pun intended) maybe that will be a catalyst to a new mood in the world. It's acutally one of those intangible things about space exploration that is more important (to me anyway) than profit. Planetary Resorces might get the ball rolling, but of course the big prize would be a manned expedition to Mars - that really would change the world for the better I think. I'm still optimistic, moreso than in the past. What chance a crew of Astronaut, Cosmonaut, and Taikonaut? That would be something!