I just read From Bovine Horde to Urban Players: Multidisciplinary Interaction Design for Alternative City Tourisms byAnne Galloway, Martin Ludvigsen, Hillevi Sundholm and Alan Munro.
I like the concept of co-dependency versus isolating experience concerning the balance of power between the tourist and the local. The artifacts the authors proposed (the tour t-shirt and the cube) are nice way to turn an isolated activity (visiting a city with a map) into a joint activity (visiting a city by engaging tourists and inhabitants into a shared experience). Both of the interactants can hence benefits from the outcome of the interaction.