From a user perspective: A tablet that folds up to the size of a phone. Or a phone that flips to the size of a compact little square.
From a business perspective: A phone with an extremely fragile screen that will require frequent replacement and a hinge that has limited life, ensuring customer retention and re-purchasing.
I do keep a loose eye on them, especially flips as I like the idea of a phone that can fold up really small for tiny pockets. Their unfathomable prices and durability issues put me off, though. I have seen foldables that have been kept past the usual 2-year contract window and... oof. They do not age gracefully. For the $1,800-$3,200CAD asking price that is unacceptable. Does not help that the only foldables with major retail presence here are from Samsung and Samsung's customer service and warranty support here is atrocious.
Prostagma?