vanessa hudgens scandal 2009malnarJan 4, 03:09 PMWhy would you need GPS for a route you take daily? Traffic, I suppose...but still? That's 99% of my use for GPS apps - daily. They alert you to and try to route you around snarled traffic. If you aren't using an app that takes advantage of real-time traffic data, you are missing out on a very big part of the app's usefulness. Well, Zac Efron has