The numbers are small as yet, but early indications are that Mac users are keen to get their hands on the new Yosemite features. Social sharing tool AddThis, which collects analytics data from 13 million websites, is reporting that Yosemite adoption is already running at 2%, versus 1.2% for Mavericks in the same timeframe … 

Early this morning numbers show 9to5mac readers now over 50% on Yosemite

Yosemite is available as a free download for OS X 10.9 Mountain Lion and 10.9 Mavericks users. Apple switched to free operating system upgrades with Mavericks last October. The previous update, Mountain Lion, cost $19.99.

Yosemite introduces a significantly different look & feel, in keeping with the flat design of iOS 8, and offers a very worthwhile range of new features such as Handoff, Continuity and iCloud Drive, as well as enhancements to Spotlight.

Via Business Insider