I used touch on the Treo all of the time, pre-apple, and didn't do too much with a stylus. There was nothing about PalmOS that was desktop based, so your "invar

I used touch on the Treo all of the time, pre-apple, and didn't do too much with a stylus. There was nothing about PalmOS that was desktop based, so your "invariably" statement is a lie. You can't patent a screen size.