Granted that's not patent trolling just yet, but that would definitely be a good first step towards it.
I mean given that this patent was granted on the basis that the tech already existed but on capacitor screens and not touch screen is laughable.
Of course Apple didn't invent any of these things -- multitouch and heuristics for detected angular swipes were available on older resistive touch screens. However, modern phones don't use resistive touch. The current state of U.S. technology patents allows you to repatent virtually identical firmware on a new kind of hardware.
I agree entirely that it's a suspect patent (even without the capacitive / resistive difference elements of it are hardly innovative) but that's still not trolling as Apple actively use the patent in their own products and registered the patent with that intention.
I mean given that this patent was granted on the basis that the tech already existed but on capacitor screens and not touch screen is laughable.