OS X shipping more open fonts by default with Lion release (10.7)
I find it interesting to see that while the previous version silently shipped Menlo - a derivative of Bitstream Vera - as the default monospace, the trend picks up in a clearer way as the recently released OS X Lion (10.7) now ships with two big open font families : Stix and Nanum, both major projects commissioned to be released under the OFL (along with various unamed Non-Roman fonts for Devanagari, Gujarati, Gurmukhi, Tamil, Hindi, Marathi, Nepali, and Panjabi, Bengali, Kannada, Khmer, Lao, Malayalam, Myanmar, Oriya, Sinhala, Telugu and Urdu... No word on their licensing though).
This choice contributes to show how sometimes the quality and scope of open fonts are too good to pass and it gets a vote of confidence by being explicitly described in the release notes.