The Falcon Vertigo Hybrid VTOL is a commercially available QuadPlane VTOL aircraft that has been designed to work with PX4 and the Dropix (Pixhawk compatible) flight controller. The RTF kit contains everything needed for a full system except an RC receiver and telemetry module.
The Dronecode/PX4 test team built one of these vehicles as a QuadPlane test platform! A test flight video and some images of the build are shown below.