>Six out of the 10 most popular Windows Phones are two years old.
>Why is this a problem?
Wouldn't that also mean that more recent models aren't being sold much and that sales aren't ramping up? That might be a tad bigger one than just the technicalities around the Windows 10 uptake.
I have no huge beef around MS phones, I briefly considered buying one (a 640 or 740?) as a replacement phone (price == very good, but low res for huge screen). But I wonder when MS is going to drop or fix that product line because it seems to be in zombieland right now.