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.
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 6-year-old computer may be getting a new lease on life. The update will be available in the App Store.
Still kicking around on Snow Leopard? Well, welcome to the future, no money down. This is a major shot across the bow of Windows.