Well - hate to break it to ya all... the touch sensor is not true multi-touch. It's not iPhone-like full matrix capacitive touch screen. Yes- it can pinch to zoom and might do some limited rotate (very limited) but it's based on the same technology of common touch pads - it can do only single finger tracking. The pinch gesture can be recognized but if you are thinking you can have apps like the iPhone piano or guitar - or for that matter - a multi touch keyboard - well - it will not happen with the N1 touch screen.
Not to say that it is a problem - multi touch is over hyped as-is. The pinch-to is just good enough and the zoom bar on previous HTC phones was just as useful.
But don't expect the N1 to detect the position of more than one finger.
Given that - I wish they stayed with resistive touch screen where you could use a stylus to type - 15 days with the N1 and still I find it harder to type with my finger that using a stylus with my now sold HTC HD.
But there is no comparing old WinMo with Android. N1 is a keeper.