So, are proposing color managed cell phones?
Do they need to be? If they were, would we edit images on them as we do on the desktop with big, color managed displays? I mean, it be nice but let's look at the tools under discussion here, what we hope to do with them. My iPhone has a tiny keyboard. I'm an old fart and hate typing on it so I'd be hard pressed to write a short email let alone a letter or book. I could hook up a Bluetooth keyboard which would help, I'm still stuck with a tiny display. Transfer those tasks to a 15" MacPro Retina, much easier, I'll do a lot more work of those tasks on that tool. But compare that to a dual 27" NEC setup with the same laptop driving it. I'm going to spend far more time editing images there than the Macbook alone.
Use the right tool for the right job! Not the most popular or most current selling tool. This is the crux of the issue I have with LrM. It
could provide very useful functionality if it were actually based on the strengths of the tool it was not (currently) well designed for, a mobile device. I hate typing on my iPhone but the voice recognition works well for a short sentence or two. That addition to the tool makes it more usable and it is that kind of direction LrM has to migrate to. Just putting current desktop/laptop tools on a mobile device isn't enough to make LrM very useable to many of us. And as the attraction of the shiny new toy fades, I suspect many more users too.