Uglow's main argument is that we should design digital interfaces according to these three basic principles:
The Moodstone is one of many great examples of this design thinking, it's an object that can capture the subjective data around mood swings.
In the TED-talk he also points out that big tech companies agree with this and that they are heavily investing in touch, speech and gesture.
Uglows perspective on digital interfaces and user experience resonates with the concept of Digilogue which is also the title of my recent book Digilogue: How to Win the Digital Minds and Analogue Hearts of Tomorrow's Customer.