What is the target to write for is the key aspect here. Not sure there is enough on the phone for developers to create new experiences. I fear all of them are going to try to automate everything on the phone for the user. Not sure what value that provides. May be I am overly skeptical , let’s see
Maybe I'm a "simple" user but I honestly can't think of anything I'd need automated on my phone that I haven't already automated myself with shortcuts. It's first and foremost a communication device, and I don't need AI automation to reply to my messages or emails for me, nor do I necessarily want purchases/ordering things automated either.
The personal context/search stuff is nice, but that's first party now so yeah, not much room for new experiences.