I said they should do this last year when they first unveiled the Vision Pro. Make a lightweight, cheaper version that you just plug into the iPhone in your pocket for battery and processing. Even if limited to iPhone Pro for the faster USB or do Thunderbolt in the future. Just keep the R chip in the headset for tracking and such as a co-processor locally to reduce lag. Eventually develop a high speed wireless interconnect between the glasses and the iPhone.
I’d buy something like this for $999, even tethered, especially if you could connect it to a Mac when traveling to use it as a giant widescreen display. I don’t really need the Vision Pro for computing, I just want it for entertainment on the go and for extending my Mac desktop on the go without spending an arm and a leg. It works better as an ecosystem device until the tech catches up later next decade.