I emailed Quesh yesterday and just got a reply back saying no date yet on the firmware update being available.
Mine kept switching off on a ride yesterday around every 50-60 mins, so about every time the 8GB card would be full, switching it back on started recording again for another 50-60 mins. I have ordered a 64GB card to use instead so hopefully it will stop this issue.
Testing it last night it did switch off after 15 mins of no movement, but this morning is has been sat on my desk pointing at the wall, so no physical or image movement and it has been running for over 2hrs without switching off and happily loop recording. So to me it seems like a software/firmware bug which hopefully the update when available will resolve.
I'm still happy to live with its current quirks to save £60 over the Fly6, which I would have bought the 64GB card for as well so I can have all of the ride available to me.