Apple today announced Safari 4 public beta for Mac and Windows. With its new Nitro engine, Safari 4 runs JavaScript 4.2 times faster than Safari 3. And it features many innovative new features that make browsing more intuitive and enjoyable, including Top Sites, Full History Search, Cover Flow, Tabs on Top, and still others. Safari 4 beta is available for immediate download for the Mac and PC. Read more: apple.com/safari
