I think bias might be a little too strong a word. While there's always going to be some bias, my guess is the reluctance to promote WP7 is half lack of training

I think bias might be a little too strong a word. While there's always going to be some bias, my guess is the reluctance to promote WP7 is half lack of training (have the MS reps been by for a morning training session, did they bring marketing materials, and did they leave their contact info?) and half skepticism that the device is probably a lame duck. If MS is really selling the thing for 1 cent online, that also creates a perception that the phone has little value (if they're just giving it away!), and reinforces its small market share. They've been thoroughly beaten to the punch in every way by their competitors and no amount of playing catch up is likely going to help them.In the words of Sun Tzu, "Victorious warriors win first and then go to war, while defeated warriors go to war first and then seek to win."