Touched 5.42 little over a week ago, had a rise up to ca. 6.22(?) before the weekend, is now falling again, at around 5.7x.

I hope WP7 is another KIN. If Microsoft is to be a smartphone player, I hope it's based on an adapted full OS like Maemo (Windows 8 ME / ix86 compatible), not Zune firmware adapted for phones.