Great Find Jimmer, and there's more...
Looks like Tethering is here for a Lon, Long time...
"Relying on an iPhone for processing, networking, and location services has another key benefit: pricing. Apple isn’t averse to finding ways to sell a customer three substantially overlapping devices (say, iPhone, iPad, and Mac) when two or even one might do, but as weak sales of HoloLens and other AR headsets have demonstrated, average people aren’t willing to pony up $1,000 or more for wearable computers.
A decade may pass before that changes —" https://venturebeat.com/2019/03/08/apple-has-no-viable-alternative-to-iphone-tethered-ar-glasses-yet/