The WP deal killer for me, regardless if it is the Lumia or the HTC or whoever, is the last section of this site, if I can't get my original photos of a mobile with USB or bluetooth the mobile is stuck in 2005. And in 2005, with my Nokia 7610 I could get all my photos off the mobile with USB or bluetooth.
LIke Terence, I am an edge case. And I have no desire to run 100mb of Zune over on Virtual Box just to pull my photos off in their original size. Folks who have been sending their photos to Microsoft's Skydrive have found that they have been resized and are not the original size.