The pricing and release date for OS X Mavericks has been announced at Apple's special event today. Mavericks, Apple's new cutting edge OS is... free. Yes, free.



From TUAW:

Even better, Mavericks will be available for all users today. When we say all users, we do mean all users, including ones who are using hardware from 2007. You can see the list of older models supported in the image above. Your six year old computer may be getting a new lease on life. The update will be available in the App Store.

  OS X Mavericks is available today for free