Dirtiness of touch interface

Dirty touch interface How touch interface can age... and get dirty over time. Seen in Paris yesterday, it's actually an old video rental booth down the street of the 11th arrondissement.

Why do I blog this? just find intriguing the role of aging (and dust!) in the design of interfaces (and then: interactions). Sometimes other services need to be put in place (like new kind of maintenance... that would clean the interface or keep it usable).