I'm thinking it would be great to have a backup camera that's wifi or -unlikely- BT and ideally working on batteries so no wiring necessary at all and running on a mobile device. (Note that most of the "wireless" gizmos out there still require power wiring and many use a dedicated display.) Getting too old to enjoy running ugly wires every which way, and I have an assortment of tablets, phones, and laptops that all have wifi and BT and are underused. I'd think that the batteries could last weeks since I don't exactly spend a lot of time in reverse, which would make the battery concept usable. And it'd be easy to move it between vehicles.
Any specific recommendation?
Any specific recommendation?