How to connect a PS4 controller to your PS4, and charge or add controllers

You can connect a PS4 controller using the micro-USB cable that comes with the device. But connecting a second one requires a different method.

How to connect a PS4 controller to your Android phone or tablet to play games with it

You can connect a PS4 controller to your Android phone or tablet through the Android's Bluetooth menu.
Engadget

Microsoft is testing a new on-screen keyboard layout that works better with game controllers

Microsoft has been working on improving small-screen and touchscreen input, focusing on making it more accessible to Windows handheld console users (think the ASUS ROG Ally). Typing with a controller ...