I agree with your points about LLMs being like touch screens but what kind of natural language interaction apps are you talking about? Might be that some startup has attempted something similar already.
I'm a different person but the key for me is a wrapper than can handle uncertainty and ask questions for clarification.
Currently I don't find LLMs tremendously useful because I have to be extremely specific with what I want, which IMO is closer to writing code than the magical promise of turning ideas into products.
An app that I can just talk into and say, "I want to do X" and it can start building X while asking me questions for functional requirements, edge cases, UI/UX, that's a killer app.
It's also an app which could actually decimate many SWE jobs, so, I should be careful what I wish for.
