You may have heard about the "gay cruising" phone application, Grindr, which "uses GPS technology in your iPhone or BlackBerry and Wi-Fi in your iPod touch or iPad to determine your exact location and instantly connect you with guys in your area." The first thing that I thought, was how scary is it to have strangers knows exactly where you are? Then I saw this article on Gawker about a Washington Examiner reporter using Grindr to find which part of the White House, Pentagon, and Capitol has the most gay people. Anyone can use this application, and my concern is, what if it gets into the wrong hands? I imagine that one using this application is aware that he is exposing himself to the world, and there is a "blocking" capability, however, I still couldn't help but worry about the possible misuse this application could lead to.
On the other hand, the app is immensely popular, and shows the power of mobile phone. The app reached its 500,000th member in February 2010, after launching in early 2009. http://iphone.sys-con.com/node/1299346 With almost 2,000 new users signing up daily, it's clear this app is filling some kind of social need. Just this one app also shows the potential of mobile marketing. If an application targets a specific market, I wonder if there is a way for marketers to advertise via the application.