We finally have a progress report on the integration of the IR-LOCK (Infrared Pixy) vision sensor with Pixhawk. A group of students at the Georgia Institute of Technology is using the sensor for their 'Package Delivery Drone', which requires precision landings. They plan to use GPS to travel to a waypoint, and then use the IR-LOCK sensor to land precisely on an infrared beacon. Recently, they were able to get an IRIS+IR-LOCK to auto-hover over an IR beacon (see videos). Website: http://irlock.com