whilst I agree with some of your passion for the product and would love to see this decision reversed I can't help but agree with Rbasin and 93tid that your enthusiasm is insufficient to turn it around.
I think the mistakes MS have made in Mobile (and in other consumer hardware they have attempted) are deep routed in the consumer psyche at this point and will not be turned around with product improvements or 'new' versions.
To make any kind of dent in the dominance of Apple and Google at this point will require something truly game changing which 'just works' from day 1 and is so compelling that purchase is considered absolutely essential. For all the stuff MS do well - and
I agree they do occasionally have good ideas and execute them properly - they have never excelled at first mover technology, they really don't get 'mass market appeal' and they've only recently put in place the infrastructure to handle large volumes of non-technical
users properly and they still struggle to make use of that infrastructure for consumers. Apple won the smartphone market by making something that was beautiful, beneficial, radically different and working (sufficiently) from launch - Microsoft have never done
that. Google gained share by delivering a free-to-use OS and helping hardware partners develop devices which take advantage of it - Microsoft have never done that either.
Nadel may not be taking the company in a direction I like but he's clearly focussing on their strengths where he sees them and consumer devices have never been a big market for them other than xbox, even their Mice/Keyboards and web cams are overpriced and
confusing these days. Xbox 360 was a good market but they fluffed the launch of XB One and handed it to Sony.