Oh, I forgot this.
If the #foldable #iPhone can run iPad apps, which it should / has to, it should also support #pen input.
But the current #ApplePen is too big for that. So #Apple has to shrink the current pen or develop a new technology, probably passive without battery. There also needs to be a better easy to store this pen so that it stays in place when you put the phone into a pocket. I haven’t seen this in the models currently making the rounds.