Re: US$399 “Surface Go” has a ten-inch screen
> Other way around, as Microsoft's product was first by a good few years.
Surface was first released October 2012.
""" Release date Surface: October 26, 2012"
Here's a keyboard/ cover for iPad from 2010:
Logitech Ultrathin Keyboard Cover was released early 2012 (before surface released):
Here is a review of several keyboards and keyboard/covers from mid 2012 (before surface released), some of which cater for portrait mode too. It is about choice.