Anyone else think there's an inherent problem in requiring precise rear-touch pin-point touching since you ummm can't see where your hands are because they are behind the screen? When I touch with the rear pad it never shows up as being where I thought my fingers are.
I think in general rear touchpad usage needs to be more general and open like LEFT SIDE TOUCH, RIGHT SIDE TOUCH.
I'm playing Escape Plan and I think the use of the rear touch is very creative, tapping things in the rear to move them toward you and pushing them on the front touch pad to move them back. However, to get 3 stars on levels you need to use as few touches as possible and it's kind of hard to do that with rear touching since you never know exactly where your finger is in relation to registering on the screen. I think one way around this is if the software could figure out the shape of your hand from how you are holding the rear touch screen and show a transparent shadow on the screen that represents your fingers against the rear touchpad.
But yeah, I think they need to have HUGE hitboxes for registering rear touch because of the pin-point accuracy problem. Playing little deviants with the rolling around drove me crazy.