What exactly is so great about this? 20 years ago we did this stuff (the exact same teapot) on SGI machines and Open GL with much lower spec than todays phones (although much higher price ) Seriously, who are going to be impressed by this? An ARM CPU in the GHz class with a dedicated GPU, and still the animations aren't 100% smooth.

I'm just curious, because those demos are clearly not good enough, not by a long shot. This is not my opinion, this is a fact, because it is obvious that something bogs down allowing the HW to be used only to a fraction of its potential.