Look at the people who are behind planetary resources: Chris Lewicki: President & Chief Engineer, Tom Jones: Advisor, Sara Seager, Larry Page , Eric Schmidt , James Cameron, Charles Simonyi, K. Ram Shriram , Ross Perot, Jr.
I have a hard time giving money to millionaires and billionaires. Also I think that they are connected to Intellectual Ventures, one of the biggest IP trolls out there.
Also if it finds a sold platinum asteroid for them to mine do we all get a share? Oh right that's just for the rich people.
I totally approve of the idea, but I don't like the people doing it. Also some of these people don't have the best track record with open access.