
The 21 revised full papers presented were carefully reviewed and selected from 132 submissions. The papers are organized in topical sections on reaching out, context and its application, security and privacy, understanding use, sensing, as well as finding and positioning.
| jonathan r salisbury r a and bucher n malt crockett johnson bill thatcher niccolo machiavelli | bryan d midgley jane belk moncure meggin davenport chetana et al mandavia samuel munzele maimbo |