I really don’t know how to classify this one, but here are several possibilities:
- Loss of personal privacy
- Big Brother comes to the party
- Big Brother tells everyone where the party is
- Avoiding the crush
- Avoiding traffic backups
- Finding the party
And the list goes on.
Basically what is happening is that signals from cell phones and GPSs are processed (a little magic there) and their locations mapped. Large concentrations of signals show where there is traffic congestion, a party, or some other event.
For a demo, visit CitySense, though you will need a Blackberry (or, soon, an iPhone) to actually be able to use the results.
For details, visit Columbia University’s news site.