* In NA, 1.0% to 0.97% drop from May to June: http://gs.statcounter.com/#mobile_os-na-monthly-201106-20120...
* In Europe, 1.23% to 1.36% rise from May to June: http://gs.statcounter.com/#mobile_os-eu-monthly-201106-20120...
Stats from Netmarketstats shows a much larger global decline, so I think we can conclude that WP is barely growing it's overall marketshare. I expect the WP8 announcement (rather, the WP7.8 announcement) will lead to reduced sales until WP8 is released (hopefully) later this year.
As for Android/iOS fanboy FUD, what exactly would you be referring to?