/I don't believe IDC or Gartner
Oh, if we're talking about those numbers that imply that every single Nokia customer is going to stick with them when they switch to making WP7 phones, yeah, they're higher than a kite.
That said, I'm pretty happy with mine, though the difference in customizability between it and Android has been a bit of a culture shock for me. But the responsiveness of the OS more than makes up for it. There's a *lot* of potential in there, enough for me to figure it's worth a year of playing around to see if it's realized.