Great look over at The Verge on the risks of backing a Kickstarter project:
Once a project is funded the company will not issue refunds, they said. While they will email absentee creators, and reserve the right to cancel ongoing projects that aren’t legitimate, once a project is funded they won’t take any legal action. They will, they say, assist prosecutors if backers get law enforcement involved. But ultimately, it is up to the backers to solve any legal issues.
I’d take a long and hard look before backing anything on Kickstarter.