I don't mind folding. I think it's cool, and a nice way to get a useful space. But I have big hands, and I can't use my iphone 17 now without two hands. This is even wider before unfolding.
Who wants bigger phones? Who is like, "damn I wish I had a tablet that I could fold up and still barely fit in my pocket"?
I want smaller phones. The width of the iPhone 4 was nearly perfect imo. If they would take modern display technology with approximately that width and expand it to 16:9, I think it would kill, even if it were relatively underpowered compared to the modern top of the line.