| With the Sidekick, PalmOS, and then Material Design, Matías Duarte has been consistently at the forefront of mobile UI design. Agreed, but with a slight nitp

| With the Sidekick, PalmOS, and then Material Design, Matías Duarte has been consistently at the forefront of mobile UI design. Agreed, but with a slight nitpick - Duarte was hired to lead development on Palm's webOS designs. PalmOS was the aging predecessor.