Removing Touchscreen Handler

Ahh, that's interesting. I just checked and it seems that if you redefine the function with:

function touch(x,y) {
...
}

It should work (I didn't try this on the touchscreen, but I tried with setInterval, and something that looks a bit like the touchscreen handler).

However if you try edit then it does:

touch = function(x,y) { 
...
};

And that doesn't work. I'll try and fix that (what edit does) in the next version though. Unfortunately I believe that touch = function() { ... } actually does the correct thing in not updating the function, only the pointer.