I saw my 6th or 7th WinPhone yesterday, brother-in-law sent some clothes over and an "old" Nokia he got as a present, he never used. It turned out to be not that old at all, a Lumia 735.
I was considering sending the thing back to Redmond, Washington, by UPS - to make sure somebody signs it off.
I played around with it yesterday, only for like 15 minutes ... and, the first thing you see after you gone through the setup is a desktop with lots of junk, no mm2 left. On other phones, you have Photos, Mail, Settings etc, on Windows phone you have that plus a bunch of "widgets", or "moving" tiles with news you don't care about, that are just as annoying as the animated gif ads, if anyone can remember them ....
Theiir app store is still lacking many apps I would expect on a mobile device. The teen in this house had never seen one and looked at it quite extensively, before joking "There's nothing interesting to install, it is an adult phone, I guess."
I might give it to a Nokia fanboy I know ... he's still using 3330 type Nokias, "a phone's for making phone calls", he says.
I think Ballmer is right (I side with Ballmer, who'd da thunk), MS needs a mobile strategy, however, it is probably 5 years too late for that, and 5 years is like an eternity in the mobile business.