I guess I don't see many scenarios in which you can't just put the keyboard case down while you're walking around. I assume you have in mind a work setting in which you need to walk around showing your work to others or doing a presentation. Again, you just leave the case behind at your desk or inside your bag while you're doing that.
I think the keyboard case already comes into contact with far greater dangers than the iPad camera bump.
Obviously there's never going to be a perfect solution for every use case. When it comes to 2-in-1 modular devices, that's just the reality of it. I don't think we'll ever get a seamless innovation that checks every box and I've owned every type of them.
- Windows/Chrome laptops with 360 hinges - Pretty neat party trick, but you will also have clackity keys in the back while you hold the device in tablet mode. Too heavy for tablet use.
- Surface Pro - Great kickstand that provides every possible angle you could want, but doesn't do well on the lap and takes up a lot of desk space.
- Surface Book - Easily remove the screen portion with a press of a button and flip it over for presentation or drawing mode, but has that large gap in the hinge. Very heavy in clamshell mode.
- Smart Folio Keyboard - Light and keeps the iPad easy to use even when connected but that convenience comes at the cost of features like quality keyboard, trackpad, additional ports, etc.
My ideal device would be the Surface Pro X, where it has a traditional desktop, multi-tasking, file browser, and a robust app store like iOS. Unfortunately the apps on Windows Store will always be an issue and Surface Arm devices have not and likely won't ever fly off the shelves anytime soon so that situation will remain the same.