During its developers conference on Monday, Apple previewed Mac OS X Snow Leopard, which will build on the success of OS X Leopard with a focus on performance and stability. A quote from the article:

Rather than add new features, the Cupertino-based Mac maker said the goal of Snow Leopard will be to enhance the performance of OS X, set a new standard for quality and lay the foundation for future OS X innovation.

>> Apple previews Mac OS X Snow Leopard with QuickTime X