title: touch screen programming issue
body: <p>Suppose I have a touch screen which supports single finger touch, is it very hard to use software based solution (e.g. programming to detect multi-finger touch and movement) to make the touch screen support multi-touch?</p>
  
  <p>Just like I bought a cheap single finger touch cell phone and through programming I make it work as iPhone, Gphone or what so ever cool (supporting multi-touch). :-)</p>
  
  <p>I am using VSTS 2008 + C# + .Net 3.5. I am asking seriously, not joking. Please correct me if I am stupid and on a wrong direction.</p>