As the move towards ecosystems accelerates, and as Windows merges between form factors, I think we'll see a change in WP's fortunes. So long as MS don't miss the wave. I can't see many PC users switching to a Mac or a Chrome based PC to fit with their phone, so I'm expecting a good uptake of WP devices instead. As soon as we can run our apps on all our Windows ecosystem devices, I predict a marked change.
Slightly off topic, but I also had the same thought as I was getting mad at Google for the whole Youtube thing. I was thinking to myself if I had one minute with Eric Schmidt, what would I say, and I figured it would be about Google apps and Microsoft. It went kinda like this
"so why wouldn't you support Windows and windows phone?"
"well, we here at Google support all viable platforms and we just don't see them as viable platforms"
"huh? Haha over 100 million people use Windows 8, I mean, I could see Windows Phone, but how could you not embrace the future?"
"we don't see windows as being the future"
"then what do you suggest I do if I want a Gmail and google now app?"
"buy a chrome book! We support those 100%"
"*chuckles* dude, I'm gonna switch email services before I switch operating systems, that makes no sense"
I never got past that part though