Over the years, I've shared data with you about the growing importance of mobile devices to a news site's audience. For us, in recent years mobile has grown incrementally with punctuated jumps every year or so. We just had one (as I suspect other sites also have) between November and January. But setting aside all of mobile, 11% of all visits to TPM come from iPhones. Another 9% come from iPads.
Looked at from perspective of operating systems, 45.88% of TPM visits come from the Windows operating system (all flavors). 46.38% of visits come from Apple operating systems (OSX and iOS).