PS4 isn't the innovator.
All the things you mentioned happened on PC first, in some cases years ahead. Sony philosophy with Playstation has always been "It does everything". The key difference with PS4 is how well Sony has architectured the PS4 to do everything.
The main innovation is the PS4 OS made in synergy with the hardware design where they have separate ARM processor/memory just for the OS level services (video capture, streaming, party chat, etc) while leaving main processor and 8GB of DDR5 for apps to use.
It is a beautiful hardware/OS design and it has some brilliant highly focused minds working on continually improving it with a keen eye on improving the user experience and expanding system level services in meaningful ways.







