UPDATE: My first impressions of Apple Safari 4 beta, with screenshots.today announced the public beta of Safari 4, what the company is calling "the world's fastest and most innovative web browser for Mac and Windows PCs."
“Apple created Safari to bring innovation, speed and open standards back into web browsers, and today it takes another big step forward,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “Safari 4 is the fastest and most efficient browser for Mac and Windows, with great integration of HTML 5 and CSS 3 web standards that enables the next generation of interactive web applications.”
Safari 4 includes HTML 5 support for offline technologies so web-based applications can store information locally without an Internet connection, and is "the first browser to support advanced CSS Effects" that enable highly polished web graphics using reflections, gradients and precision masks.
In the press release, Apple also notes that its WebKit architecture "led the introduction of HTML 5 and CSS 3 web standards" and notes that Google Chrome, the Google Android browser, the Nokia Series 60 browser and Palm webOS are based on the architecture.
Safari 4 is a public beta for both Mac OS X and Windows and is available immediately as a free download at www.apple.com/safari.
System Requirements, Mac OS X: requires Mac OS X Leopard version 10.5.6 and Security Update 2009-001 or Mac OS X Tiger® version 10.4.11, a minimum 256MB of memory, and is designed to run on any Intel-based Mac or a Mac with a PowerPC G5, G4 or G3 processor and built-in FireWire®.
System Requirements, Windows: requires Windows XP SP2 or Windows Vista, a minimum 256MB of memory and a system with at least a 500 MHz Intel Pentium processor. Full system requirements and more information on Safari 4 can be found at www.apple.com/safari.
UPDATE: In a first look, ZDNet editor-in-chief Larry Dignan says it's just another browser in his crowded stable.