Technology

In retrospect, I think there could have been ways we could have made it work by perhaps reinventing the category of computing between PCs, tablets, and phones.

I'm sorry but no, Microsoft was never going to be capable of reinventing any category of computing. They've never done it before and it's just not within their expertise. I think Nadella was right at the time to cut their losses. Windows Phone represented Microsoft's best efforts in that space and, while it had its fans, it just wasn't enough.

Meanwhile, they've done really well with their "apps and services on every platform" approach. How many millions of people use Outlook on their phone? How many apps are running their back end on Azure? Microsoft may have given up on an aspect of "mobile," but is still raking in piles of cash from what people actually do on mobile devices. Take the win where you can find it.