The installations I have seen in the real world however are at best boring (and often not functioning at all). It seems that even a student-project-lab-demo is more appealing and works at least as realiable.
Especially combining sensing (e.g. simple activity recognition, context) with low threshold interactive content seems to have great potential. If there is somebody interested in really cool stuff for a shop window (attention grabbing, eye catchers, interactive content, etc.) – talk to me. We are happy to discuss a project proposal 😉