I think the specific "product" they are referring to is Amazon's willingness to accept the authorization at a certain point and then only actually charge the ca

I think the specific "product" they are referring to is Amazon's willingness to accept the authorization at a certain point and then only actually charge the card later when Kickstarter signaled that the project was funded. I remember hearing a long time ago that Amazon wasn't particularly happy with this arrangement, and had specifically declined to offer it to Kickstarter competitors.