Six years ago, most smartphone users were heavily invested in their Windows Mobile or Symbian app ecosystems, or in Blackberry's messaging ecosystem.
That said, to pull off an iPhone- and Android-style upset though, Microsoft would need a correspondingly huge difference in user experience though. The UI on Windows Phone is nifty, but it's not enough of a game changer for most people. It'd really have to be something like successful execution of wearable computing or the convergence described here: http://arstechnica.com/information-technology/2013/08/want-t...
The user experience is significantly worse for some cases, where Microsoft could have grabbed market share (though I don't know if it would have been worth it strategically).
I've posted several times about the awful experience:
I had some very ugly experiences setting up one for my cousin (I stupidly didn't lie and registered her as being from Uruguay and under 18), which made the phone behave like a brick ("sorry, no apps available in your country", "sorry, you have to be over 18 under laws from another country to use most of the features of this phone").
Changing the Live account did not work, I had to reset the phone and create another account for her, lying about her age and country so the phone could work properly (she wanted to use Skype and WhatsApp, not exactly the most demanding use case).
That said, to pull off an iPhone- and Android-style upset though, Microsoft would need a correspondingly huge difference in user experience though. The UI on Windows Phone is nifty, but it's not enough of a game changer for most people. It'd really have to be something like successful execution of wearable computing or the convergence described here: http://arstechnica.com/information-technology/2013/08/want-t...