This is the second year that Rackspace is the title sponsor of Luminaria, the famed nighttime festival that celebrates San Antonio’s local artists. Last year we wanted to show the world what makes Rackspace special (Rackers, of course), so we did the Racker flash mob. It was super fun and a complete delighter for folks who attended the opening ceremonies, but it also left us wondering how we’d raise the bar in 2012. We decided on two things that would a) represent Rackspace and b) add uniquely-Rackspace value. We decided on a Racker-created art installation and a smartphone-accessed interactive guide.