I've heard a lot about how camera phones are a bad thing, invading peoples privacy, being used by perverts of alll descriptions in changing rooms, etc etc et, blah blah blah.

The simple fact is that they're a technology, and as such can be used for different purposes.

Tech-dirt links to an article on CNN about ways that camera phones have been able to stop or solve crimes and I've got a recent example to add, from Dr Joshua Ellis.

We started yelling at them. "Go ahead, motherfucker, spray down the fucking tourists, motherfucker. Let's go national with this shit."

Techdirt:Camera Phones Against Crime!