As they say, it's the skuomorphism. The original iPhone aimed to replace various existing things - instead of TV, we've got YouTube! Instead of a notepad, we have the notes app! No need to carry around paper maps with charming little pins stuck in anymore! This is equivalent to dressing up nicely as one would for an in-person meeting and plonking oneself down in front of a laptop webcam, according to the author.

In the newer iPhone, and in Bill Gates' setup, it is understood that the framing is the important part, it is not enough to pretend to be in a normal meeting.

Of course the whole thing is a bit silly