Question: The way Stantum screens detect multitouch is they are able to get contact data from every grid point on the screen individually and based on pressure/distribution are pretty easily able to figure out what spot is one touch, and which is another.

Is there something about the actual physical make up of the N900 screen that makes it incapable of this? Or is it just that whatever hardware does the processing of the inputs isn't meant to figure this stuff out? If the latter, what level of access, if any, can the operating system get to the raw outputs of the screen hardware? (Now, stantum screens have their own preprocessor that does the calculations/whatever to tell the device where the touches are, so if this was even remotely possible, it would probably rape the CPU and be practically useless. But I am still curious, is there something inherent about how most resistive screens are built that makes them incapable of detecting presses the same way, at the very very fundamental level? Or is it that Stantum was the only one that bothered to figure out how to calculate separate touches from all the inputs?)