Fingers crossed for perfect touchpad implementation.
It's nothing more than Bluetooth xbox controller (with different buttons) and touchpad which works the same as Nvidia's. And maybe improvements will help to add next touchpad controller in the future - Ouya controller. Improving touchpad support can be helpful as well for Playstation controllers touchpads and Steam controller touchpads, which are great too. I am happy that Nvidia Shield Controller is finally getting some love. Such controls I was using before on different gamepads and I would like to use in the future if possible. Only few basic gestures which are reset when we are stopping tapping touchpad.
To pair your SHIELD Controller after a factory data reset, move your controller to within a foot of SHIELD TV and hold the NVIDIA button until the blue LED above the button flashes. Simply press the 'A' button to turn it on.
When we want to snipe down someone, instead of playing with sticks we are moving fingers to touchpad and using it as precise aiming.