This is a modified pod to accomodate an additional DC/DC converter. The DC/DC converter provides 5V to the AIO module and is stuck down into the slot with some photo tape.
The 3D files can be found here and are designed in OpenSCAD.
Below are some photos to give a general impression how the mount looks. The mount shown here has an angle of 30 degrees.
Test video with the F-08 mounted on the Syma X5C brushless:
