I’ve just got my hands on one of these and thought you guys are going to love this.
Basically it extends the Pi MIPI interface over standard Ethernet UTP cable using THine’s proprietary “V-by-One” serialiser/deserialiser interface chips. Power is supplied to the camera over unused pairs in the UTP cable.
As the device acts just as a MIPI (CSI-2) transceiver, it is compatible with all Pi specified cameras - and there are no necessary software drivers. It really is just a jazzy extension cable. It works as standard up to 20m but some people claim to had it working at 45m (completely unverified, btw).
A couple of downsides though; firstly the HAT occupies a lot of the user interface real estate so, unless you’re adept at hacking the Pi’s IO system, you may have issues connecting your other equipment. Secondly, it has a side entry RJ-45 connector which doesn’t make things easy if your Pi is in a pressure tube, although I have seen some Ethernet cables at Digikey with right-angle connectors which should mitigate the problem.
Finally, there is no Jetson Nano version of the product (yet?) but I’m pretty sure there will be a workaround somewhere on the internet.