Entrepreneurs are creatives. it's no different than the pebble smartwatch or light table project, except you are offering stock in the company instead of physical rewards.
That's all the difference in the world. One is a finite project where you act as a patron and get something in return no matter what (assuming the creator doesn't fall off the face of the earth). If you fund a startup, most of the time your money doesn't have any sort of return.
In particular they're very clear on the finite-project angle. You can't just raise funding for your art studio, but for some specific piece of art or project your studio is doing. A startup can already use Kickstarter to fund a specific project that way, if they want (several game studios have). But they can't just raise funds for the company "in general", which I don't think is something Kickstarter will be looking to change.
That said, I'm currently involved in a Kickstarter project in Design and it occurred to me that since the tech-side seems to draw in the most attention/funding these days--not true when I opened my project/account--, isn't confining this platform to the US counter-productive? Thus stagnating the progress of current or potentially new viable innovations.
If anyone is interested I'm seriously considering open to accepting applications for potential tech projects within Europe, S. America and Asia that want but are unable to use KS, provided they meet certain criteria, for a nominal fee in an opportunity to advance this avenue before Grinda and his ilk clone it throughout the World. Its my free Market solution to ensure that Kickstarter remains the crowd sourcing platform of choice.
If you know anyone in need of such a service tell them to post their email/link here and we can get in touch to get the ball rolling. No promises made, of course, but I think its a short-term solution to the current geographical issue.