I hope it kickstarts more development in surround sound headphones. I live in a small condo and have a big 4K projector set up. But I can't reasonably do surround sound or turn up the volume. Apple Vision. + surround headphones would be awesome, or projector + many pairs of surround headphones for group experiences.

The problem is that it puts a hard cap on how many people can enjoy your home theater, so that might be an issue. If you already have a space carved out for a home theater and were thinking of entertaining >2 people then I'm not entirely sure what the value add of the headset would be. In my opinion the benefit comes in getting a home-theater-like experience that you can bring anywhere and not have to dedicate space in your home for.

Third party developers will definitely be capable of adding a sync feature like you're describing but I have no clue if they will.

Shared space interaction was notably missing from the keynote. I'm very curious what the vision for the platform for it will be. Meta has put a lot of focus on it so there are a bunch of Quest apps and games where people inhabit the same phyiscal space and all the virtual objects are shared. I feel like it's essential for a platform like this to ultimately succeed, and curious that Apple appears behind Meta on this front.

Whether it has capabilities here or not, it seems like it would be challenging at a $3500 price point to say "and here's features you get if you buy one for each member of your family".

Within an app, the challenge would be identifying they occupy the same space and mapping into the same coordinate system. Easier for VR mode than AR mode, where your mapping can be pretty arbitrary to the available bounds.

> Within an app, the challenge would be identifying they occupy the same space and mapping into the same coordinate system. Easier for VR mode than AR mode, where your mapping can be pretty arbitrary to the available bounds

Absolutely. It's impressive work on Meta's side that the full ecosystem of headsets natively support this in AR mode already [0]. It will be interesting to see if Apple has this figured out, or if they can ship in time for release. The fact they didn't demo it suggests to me that they are still in catchup mode here. But then, there are a lot of things they didn't demo that came out in the technical talks later.

[0] https://developer.oculus.com/blog/build-local-multiplayer-ex...