Hi. The references I made quickly today are: 1) Eric Paulos at Intel Berkeley is working on making "familiar strangers" more familiar. See Jan 30 entry on IM blog "INTEL INTERN POSITION 2004: Urban Probes."
2) See Masaki Fujihata, e.g., http://www.zkm.de/futurecinema/fujihata_werk_e.html Scott knows him well.