I noticed in the link you provided that a Microsoft exec "challenged" the journalist to use a WP7 phone, and if he didn't like it MS would donate $1k to a charity of his choice.
I remember a couple of weeks ago, Molly Woods of CNet said an exec (possibly the same one?) made a similar challenge to her, too. Is this a new Microsoft thing now? Tell techies to use a Windows Phone 7 device and hope that they like it, and therefore drum up some publicity?
Because in the case of Woods, at least, it didn't really work. Her conclusion was that while she 'likes' WP7, and it has some good features, she doesn't 'love' it. And her final judgement was that whenever she next buys a smartphone, it will likely not be a Windows Phone.