Is this really the correct ordering of market share? I'm pretty sure Blackberry actually has more market share than either iOS or Android, albeit massively less buzz and consumer interest.
edit: An IDC estimate from a few weeks ago (http://picasaweb.google.com/lh/photo/qQjngE0rTd8yp1SXLrr4FA?...) gives: Blackberry OS (17.9%), Android (16.3%), Apple iOS (14.7%), Windows Mobile (6.8%)