What happens when the API is technically secure but the environment, whether widget, web site or mashup, is not? Recent security breaches in MySpace and Yahoo, which led to the release of semi-embarrassing photos of prolific celebs Paris Hilton and Lindsay Lohan, points out the added opportunities for hackers in the open web.
It's a little bit creepy, but it's also a little bit genius. Singles for Foursquare builds a dating and messaging service on top of the location-sharing application. The result is a mashup that could match up hip iPhone-using, Foursquare-playing, same-bar-going early adopters.