I think you'd have to put a gun to my head to force me to use the anything with MS logo stamped to it.

I highly unlikely be buying any of the WP7 phones, I think I'm stuck with Android (Ice cream looks good with multi-tasking), or Tizen if Samsung can be bothered to make a phone with decent build quality, decent microphone and loudspeaker - i.e. built for voice clarity not acting like a chav and blasting music.