It's nothing new, all resistive screens behave like that. Used it on the N97 to scroll faster in Gravity by removing one hand a small time before the other. It's been exploited on some devices to allow multitouch (the 5800XM had a video uploaded showing it, but nothing else, and it was forgotten.) Windows Mobile had an app that was being developed for it and exploited the feature, but I've never heard of it since it was announced: http://www.youtube.com/watch?v=A77VD9nKGDw @ 1:28 (iZoom)