You can use PS Remote Play on iOS. I do that on occasion. Not to actually play, but to go in and do things on my PS5 when I am at work. Download stuff, etc. I would never play on my phone because controlling games on a touch screen sucks.Can’t you already stream games to pc or a tablet/mobile device.
Soon you’ll get gamers and devs saying it’s holding them back.
I also don't like the phone add ons where you can put your phone into a controller.
If this device is real, and it is used to stream games that you have on your PS5, I am very interested. I am always connected. Work, home, plane, vacation and our cabin up north. I would love to have normal controls, not touch screen.