People are passionate about these kickstarters.  If one looks like it won't make it, a good % of the backers will all up their pledges and bam they make it.  Jensen really screwed her kickstarter up.  Could have gotten a lot more money.  SpaceVenture and Project Fedora are both going to end up at over 500k (Fedora could get pretty high actually), whereas Jensen only made like 420k.