Bluetooth beacon vendor Gimbal has finally made it onto the big stage, where it will star under the bright lights at the home of musical theatre – Broadway. The new deal will see Gimbal’s location and proximity technology and Urban Airship’s mobile engagement platform will power a new Playbill Passport app, using the brand of the iconic 130-year old Playbill magazine along with media and mobile technology firm Broadway Voice. Interestingly, the deal won’t be using the Bluetooth-based beacons for which Gimbal is most famous. Instead, geofencing is being put to use, in order to determine when a smartphone user is close enough to a theater for the app to trigger alerts and information about upcoming shows. The end result…