[romwell]

99% of apps in the iStore "engage only a small subset of users".

And Windows Phone did have all the other apps that engaged large subsets (from Netflix to Uber and everything in between).

Windows Phone was killed by lack of apps.

The moral, in case it's not clear, is that most of the value proposition of any major product are parts that "engage only a small subset of users".

Different subsets for each part.

Remove the parts, and you are left with no product to speak of.