Just saw this, isn't this the second high level exec involved with WP to leave recently? Didnt someone from a development team critical to WP leave MS this week?
http://www.pc-tablet.com/7603-senior-nokia-executive-leaves-lumia-920-windows-phone-8-launch-fiasco/
http://www.pc-tablet.com/7603-senior-nokia-executive-leaves-lumia-920-windows-phone-8-launch-fiasco/