iPhone app creates a real-life gaydar

As if it wasn't easy enough for gay guys to get laid:
iPhone app creates a real-life gaydar : The Temple News (http://temple-news.com/2010/02/16/iphone-app-creates-a-real-life-gaydar/)

hahahaha, go figure

I know in Japan about 10 years or so ago they had these little devices where you put in your info and match info and when 2 people got near each other with a decent match it'd give you an alert, I think both devices would beep.. was big among teens