Integrating an LLM capabilities directly into the OS is pretty slick. I know it's just one less step than copy/pasting something into a ChatGPT tab in your browser, but that seamless experience makes it that much more accessible and lower friction.
I'm excited to see where Apple Intelligence goes; though I do wonder if Apple choosing to partner with OpenAI will eventually put them in the backseat when other models like those from Anthropic surpass OpenAI's capabilities.