I saw this book at some friends’ place and I thought it could be very inspirational, not only to architects but also to creators of locative/pervasive games (aren’t they “architects of participation” anyway, to extend O’Reilly’s expression?)
Ground-up City. Play as a Design Tool, edited by Liane Lefaivre and Döll.
010 publishers says: Ground-up City. Play as a Design Tool maps the continuing history of an urban design strategy for play in the city. Liane Lefaivre has developed a theoretical model for tackling playgrounds as an urban strategy. She steps off from a historical overview of play and the ludic in art, architecture and urban design, focusing particularly on the post-war playgrounds realized in Amsterdam as joint ventures between Aldo van Eyck, Cornelis van Eesteren and Jakoba Mulder.
(…)
Ground-up City places the playground high on the agenda as an urban design challenge. It also shows how specifying a generic, academic model for a particular situation can lead to a practically applicable design resource.
(from “We Make Money, Not Art)