Continuously changing real-time maps of cell phone usage in Graz, Austria, created by MIT researchers by tracking anonymous data from thousands of mobile phones, will appear as part of Kunsthaus Graz’s “M City: European Cityscapes” exhibition between October 1 and January 8. Press release, images (4.9-MB PDF). Via Boing Boing.

Update, 9/21 at 9:15 AM: Images link fixed; see also Science Daily coverage (thanks, peacay).