Apple is filing Patent on some of its innovation on tactile feedback and multi-touch. It seems that if this is true, you are able to feel tactile feedback when you touches the screen. And also, the multi-touch involves not only 2 fingers but from the diagram, 4 fingers at the same time. More after the break.
The patent from Apple are filed by different people at different time. You can read more about it by following the link below.