No one wants Windows Phone 7
Microsoft had a huge opportunity when they had a massive market share with their Windows Mobile OS. They sat on their asses with very little innovation. Along comes some strong competition (namely iOS and Android) and suddenly they realise they need to up their game. While WP7 would have been awesome in the days of Windows Mobile OS, it's too little, too late.
Nokia have made a huge mistake by partnering with Microsoft. I can't believe how many mistakes they have made even prior to this with Symbian, Maemo, MeeGo etc. It's a real shame as Nokia do tend to have some great hardware designs (not all their designs are great but most are). However, siding with WP7 will be their downfall.
The only way they can recover in the smartphone marketshare now is to side with Android. God knows if this is even possible following the contracts they've signed with Microsoft.
Nokia's smartphone area is a sinking ship. Microsoft's Windows Phone is a sinking ship. Tie one sinking ship to another and guess what?? They still sink!!!!