In the second video, they said they'd solved it, though not how, nor was any imagery shown. Counter-rotating the image, synced to the rotational speed of the d

In the second video, they said they'd solved it, though not how, nor was any imagery shown. Counter-rotating the image, synced to the rotational speed of the device, would seem to be a simple solution, provided the camera was centered i.e. it wasn't constantly panning. Even if it was (e.g. mounted on the fastest-moving outer edge of the wing), software could reconstruct a panoramic view. You don't even need to align images from subsequent rotations, if you know what direction it is pointed. You'd get fps related to RPM though.