Why do we need 2 devices – smartphone and a computer?

Smartphones should've replaced computers by now. They're powerful enough to handle most tasks, and they already have support for external monitor, keyboard, and mouse.

I shouldn't have to secure two devices, especially a desktop or a laptop that I can't carry around easily. Imagine a world where your smartphone is your only hardware device, and when you connect to any random external monitor with mouse and keyboard, it displays a desktop experience.

The only thing holding my dream back is software. #Android OS, while very good, it's not the same as #Windows or #Linux. Most apps aren't optimized for big screens. We need this.