Held in Atlanta, GA just three weeks ago.

Includes papers from Roy Want, Terry Winograd, and from Ma Tech: Gregory Abowd, Cory Kidd, Anind Dey, and Jason Brotherton. Of interest:

Privacy by Design - Principles of Privacy-Aware Ubiquitous Systems
Serendipity within a Ubiquitous Computing Environment: A Case for Opportunistic Browsing
Ubiquitous Computing and The Disappearing Computer - Research Agendas, Issues, and Strategies
Unearthing Virtual History: Using Diverse Interfaces to Reveal Hidden Virtual Worlds
InfoScope: Link from Real World to Digital Information Space

LNCS 2201: Ubicomp 2001: Ubiquitous Computing