Well Nokia and Microsoft have the coolest phone with the updating live tiles.
Anyone over 20 will not want the Facebook Phone. If only they could get twitter. I sure would not want to give up my Lumia for the twisted mangled wire operating system called Android. You have to keep the kids happy but that phone is not for me.
They still have to work on the notifications center. Right now it totally blows. If you're using the phone, or simply not paying 100% attention to it, once you receive a popup notification and it vanishes quickly there is no place to go to see what it was. I'm told that's on tap for the WP8.1 refresh, but for now it's a significant usability problem.
gee why would you want an os that you can customize, is stable and secure with nearly a million apps
when you could use a mobile os with an anal retentive ui w/o any hope of customizing the home screen,
that has 157 bugs laughable security next to no apps but don't worry in 3 yrs the platform will be obsolete.