[huxley]

My first computer with a GUI was 8MHz. I used a touchscreen with a light-pen in 1979. There have been countless groups of graduate students brainstorming since then.

I think you'll find nothing is obvious until after it's been done. If you directly present someone with the problem, you are already leading them to the solution. The real difficulty is finding just the right problem to fix, there are millions of possible "problems" or things to change in a phone.