Vista vs. Leopard

Microsoft shipped Windows Vista in January, 2007 (or March, depending on how you count.)

Apple shipped Leopard in October, 2007.

So Vista's been out 6 months longer than Leopard.

Stats for f.lux users:

88% of mac f.lux users are using Leopard

27% of windows f.lux users are using Vista. (Most of the remainder are on XP.)

For a paid upgrade to convert at that rate is amazing. Apple is just kicking butt.

[This is just data from Google Analytics. f.lux isn't phoning home with any of the above.]