The wait for hard wire cable should be very short, as i understand it the cables should go out to retailers some time next month.
I think the SG cameras will be supporting the 21 century parking mode, meaning it operate in file segments ( before and after trigger event ) and not just what can be in a small memory buffer in the camera.
But i am not 100 % on this so better wait for a official RPLY from SG on that.
Also i am not sure if the new SG cameras will have things like time lapse parking mode too, it is after all a sensible way of saving memory card space, though i also think that will be without sound, and i can see / imagine cases where audio might be nice to have in parking mode too.
After having been dealing with several single cameras spread all over my little Suzuki hatch back, i am so looking forward to multi channel cameras so i can at least get footage from 2 camera on 1 memory card.
Not least since the little spring loaded memory cards are pesky to deal with, so several of us old timers have experienced several unintentional launches of memory cards, some even having to wave bye - bye to that card and others have to take seats out of car to retrieve / find it.
I launched my first 64Gb card out a open door and had to crawl on my hands and knees on pea sized stone gravel for 40 minutes to find it, and kneeling on such a thing are actually a old well proven torture method.
And i am not too happy about having a "large" camera on the rear window as it is after all pretty much in the face of the people occupying the car behind you, so i favor the little remote cameras on dual systems