The touchscreen is being detected by the windows, and it's working with the manipulationStarting and ManipulationDelta.
I haven't tried using another computer, but I don't think is the pc. The problem occurs when I'm a bit higher than the building. And to pan I have to press over the buildings, then you will have a weird behaviour. I fixed the problem, using in the manipulation
events the same events than are being used by the mouse (when it's detected 1 touch). I'm sure I'm using your latest code. I'm using the Windows 7 and .Net 4.0 functionalities.
I still have some problems with the rotation.
I'm not sure how I can send you my changes, or even if you need them. But the imporve a lot the map with multitouch with 3D buildings.
Thank you for youe answer and help. I really appreciate it.