Tech Round Up: No One Checks In; Zuckerberg Exposed

-I must live in a super-techie area or know a lot of hypercheckers, because according to Forrester Research, only 2 percent of adults use apps like Foursquare to check-in at restaurants, stores, or places they roam. This is a fraction of the just 30 percent of mobile phone users who have even heard of the apps. So why do I get an alert every time a fellow mom goes to Target? I’m changing my settings.