That looks great! It's so clearly going to be the dominant way of working with your computer. I was such a cynic, so I was completely shocked at how quickly it became my favourite way to interact with my devices.
I'm fully expecting to be completely sherlocked during Apple's WWDC event in the coming weeks. In fact, I'm hoping we will be. However, I fear that they might not be quite ready for that yet. This functionality really should sit at the top OS level, equal to Keyboard/Mouse/Trackpad etc.