My friend Cameron Hunt sent me a link to this AMAZING site this morning.
From the far end of the Concept page:
The goal of the project was not to create a readable data sculpture of someone’s digital life, but to express how an analogue snapshot of complex digital identities can be presented. Based on four defined criteria all sculptures had to be comparable in their form, size and expression. After generating those sculptures based upon the particles only, we added time as an underlying factor. The particle system, which represents a persons interests, spreads in space until it is balanced. The speed of this expansion, the thickness of the created hull and the starting point of the drawing process is connected to the factors age, activity and communication behavior.
This system leads to an embodiment for the final ~Gestalt of digital identity. A still life of an ongoing process about redefining and decorating. This dynamic process of digital »day life« is captured in our personal interpretation of the digital identity as an amorphous sculpture.
The Process Page says more about how they did it.