I think this points more to the increasing complexity of mobile UI as the power on these devices increases. I can tap the trackpad or screen of my Surface Pro

I think this points more to the increasing complexity of mobile UI as the power on these devices increases. I can tap the trackpad or screen of my Surface Pro with one, two, three, or four fingers to do different things. In fact, I can configure three and four finger swipes in all four directions to do different things.