I agree with all the examples mentioned in this article, but I think the beginning of 2014 was the year public opinion started to change. Nadella came out of the gate strong in early 2014. Just before that, Mike Krahulik's post about the Surface Pro 2 at the end of 2013 was a turning point for the perception of the product by people who prefer iOS/Android/Linux. ( http://www.penny-arcade.com/news/post/2013/10/28/surf…
Public opinion changes when mainstream entities (people/organizations) validate something new. Microsoft has been coming out with good stuff for several years now, but that opinion has been restricted to a subset of technophiles. If in 2014 you told someone about tablets and styluses, you'd either get a dumb look or the standard Jobs like ("you're doing in wrong") So what happened in 2015? Well, Apple validated (copi…
Edit: Ninja'd.