This doesn't break the trend of the most funded Kickstarter projects being accessories for Apple products.
Afaik, you don't have any legal obligation to deliver perks to people that fund your project. A decent scam would be to come up with a "dream" iAccesory that generates a lot of interest and pocket the money without going through the mess of actually manufacturing and shipping the product.
"If I am unable to complete my project as listed, what should I do?
If you are unable to fulfill the promises made to backers, cannot complete the project as advertised, or decide to abandon the project for any reason, you are expected to cancel funding. A failure to do so could result in damage to your reputation or even legal action on behalf of your backers."
So definitely it's possible that your backers could start a class action lawsuit and sue you because you took their money and didn't deliver a product, but this would require some organization on the backers' part, kickstarter wouldn't do this on their behalf.
No question this will happen. Kickstarter hasn't hit the mainstream yet. Once it does the scams will follow in force.
There was a story somewhere about how people don't do kidnappings anymore to get money. One of the reasons is the amount of security cameras out there another was the fact that with the Internet there were much safer and easier ways to make money illegally.
Afaik, you don't have any legal obligation to deliver perks to people that fund your project. A decent scam would be to come up with a "dream" iAccesory that generates a lot of interest and pocket the money without going through the mess of actually manufacturing and shipping the product.