Having a wishlist is ok but it seems to me that some manufacturers are trying to run before they can walk.
Adding some bells and whistles to their cams means they can keep prices inflated - and out of reach of most motorists.
The G1W is a very popular cam - decent, acceptable performance at an amazing price.
The mobius - again, a very popular cam, as the G1 but far better form factor
The mini 0803 - almost seems as though this is the lovechild of the above 2 cams!
And the pricepoint increases with each of the above.
The innovv shows us that you can have an external lens & keep the price down - the marcus 5 then takes the mickey by giving us that 2nd lens on an extension, with a price on an even longer extension!
Maybe, if manufacturers took a step back for a while. Look at how they can plug two great lenses into a unit that will provide great video and worry about the size of the DVR much later?
The whole point of a dashcam is to record your whole journey - and not just a segment of it when you shout "record" or hit your horn. As with movement detector, by the time the thing starts working, the event may be past.
Footage from a G1 is more than enough to prove innocence in many an accident - if insurance need to know your speed, they can pull the info from your car's onboard computer.
People are building their own dual cam systems using a pair of G1s, Mobius or other similarly priced, half decent cams - so until a manufacturer can come up with a system which gives dual cam footage for a realistic price, then people will continue with their home-made options.