I did a whole presentation on this type of thing a few years back. Really neat with what some of their plans are. A big topic is actually asteroid mining, because as far as we know, they contain an abundance of super rare minerals to us on earth. Google is one of the most interested parties.. Here's an article http://www.cbsnews.com/news/asteroid-mining-venture-backed-by-james-cameron-google-ceo-larry-page/
As far as space travel.... I'm not quite sure what you're saying there, because asteroids revolve around the sun. So you definitely could have access to some of the planets in our solar system, but as far as space travel beyond that, we're still shit out of luck. There's also been talk of trying to put fuel bases on the moon, mars, and venus I believe. Cool stuff!