You have been able to buy attempts for multiple years, e.g. - https://en.wikipedia.org/wiki/Motorola_Atrix_4G#Webtop https://en.wikipedia.org/wiki/Motorola_Atr

You have been able to buy attempts for multiple years, e.g. - https://en.wikipedia.org/wiki/Motorola_Atrix_4G#Webtop https://en.wikipedia.org/wiki/Motorola_Atrix_4G#Webtop - https://www.microsoft.com/en-us/windows/Continuum https://www.microsoft.com/en-us/windows/Continuum - https://en.wikipedia.org/wiki/Samsung_DeX https://en.wikipedia.org/wiki/Samsung_DeX - Ubuntu's convergence attempts - https://maruos.com/ https://maruos.com/ and probably many more (e.g. the Nokia N900 was already more of a laptop than a phone). However, all of them flopped for being too inconvenient (needing lots of cables/peripherals), too slow, too thick or just too "early". For comparison "VR" has been tried extensively already in the 1990s by Sega, Nintendo and others. It flopped. Now it is coming again and even has a Half-life game in the works. However, I am not too optimistic it will succeed this time.