One of his supporting arguments cuts both ways.

Apple's patent on "hand scaling velocity" simply gives a mathematical formula for the sentence: "scale at a speed proportional to how fast the fingers are moving."

There is nothing groundbreaking or advanced about the math here, or the idea behind it. Anyone implementing a multi-touch screen is likely to come to discover that a fixed scaling speed sometimes feels sluggish or awkwardly fast, and so that speed should adjust based on user input. And now, without realizing it, they've infringed on Apple's IP and are open to being sued.