I think the private compute stuff to be really big. Beyond the obvious use the cloud servers for heavy computing type tasks, I suspect it means we're going to get our own private code interpreter (proper scripting on iOS) and this is probably Apple's path to eventually allowing development on iPad OS.
Not only that, Apple is using its own chips for their servers. I don't think the follow on question is whether it's enough or not. The right question to ask is what are they going to do bring things up to snuff with NVDIA on both the developer end and hardware end?
There's such a huge play here and I don't think people get it yet, all because they think that Apple should be in the frontier model game. I think I now understand the headlines of Nadella being worried about Apple's partnership with OpenAI.