Once upon a time realizing university officials really wanted to know where students were congregating and what they were doing together had an ominous ring, but that's all changed in the super-connected, GPS-tracked world of today's social media. Internet connectivity no longer means checking in from the vague no-man's-land of cyberspace: with the smartphones almost everyone now has (at least the Gen Y set), you are constantly locatable in real space through the geo-locator technology built into your phone. This geo-social component of social networking offers new possibilities for interacting with places as well as people, and leaving a market-opportunity-rich breadcrumb trail while you're at it.
The smartphone is perhaps one of the most widely used pieces of technology in the modern world. The rapid expansion in the computer science fields of these devices, such as Apple's iPhone, is focused upon the phone's abilities to produce smartphone applications, more commonly known as "apps".