After her apartment was burglarized, the victim received a call from a friend while she was at work (conveniently enough, at the Apple Store in Westchester, NY). The friend noticed her stolen computer was online. The victim then quickly used another Mac to connect to the stolen laptop.
The article doesn't mention the technical details, but I reckon she activated screen sharing, and started Photo Booth (or another app that activates the laptop's built-in iSight camera). After a while, the perps showed up, and the victim's roommate recognized one of them as an acquaintance who had attended a party at their apartment some weeks before.
Armed with names and photos of the alleged thieves, police quickly arrested two men, who were in possession of most of the property stolen in the burglary.
If that isn't worth her year's subscription to .Mac, I don't know what is.
(Update: The New York Times has a story with some more details. She used Photo Booth, too. Who called it, baby?)
Thanks to everyone who sent this in!