GUNNAR supports the BackPlane #managersHACK at SXSWi On March 11th 2012 during SXSW Interactive in Austin, the BackPlane hosted a unique tech/music event called the managersHACK – a hackathon involving 200 hackers presenting platforms, applications and technologies to some of the top managers in the music industry including Troy Carter, Scooter Braun and Jay Brown. It was livestreamed by R…