Anyway, Windows Phone marketshare obviously fell in these 3 months, because for 2 of the months there were no Windows 8 Phones even available. It's not rocket science.
Dec-onwards WP marketshare data will be much more interesting...
My prediction threads:
Wii U will sell under 40m units (made on 14th September 2012)
PS Vita will sell under 20m units (made on 30th September 2012)
Wii U will sell under 7m in 2013 - I was right