I only enjoy infinite scroll on touch screens. I think the perfect solution would be paginated results, but if the user ontouchstart pulls the page past the bottom, it would automatically load the next page (like reverse of the facebook app's pull-down for new items). It's much more convenient than trying to tap just perfectly on the "next" arrow, but paginated is just easier with a mouse.

That mindset of design I think is the next step after "responsive" design. Rather than just scaling the visual design of the page, how about truly designing the user interaction to fit multiple scenarios. If it were up to me, I'd call it Symbiotic Design (responsive 2.0)