Safari 4 is released by Apple for Windows and Mac users. As Safari is the fastest web browser for every platform. There are so many enhancements are done in Safari 4.
New additional Safari 4 features are as follows:

• VoiceOver Screen Reader (Mac OS X)
• Customize toolbar
• Full Page zoom
• Accessible Rich Internet Applications support
• Speculative Loading
• CSS Effects
• CSS Canvas
• HTML 5 Offline Support
• Nitro JavaScript Engine
• Acid 3 Compliance
• Cover Flow to flip through websites
• History View
• Automatic Identification for Top Sites
• Customize Number of Top Sites
• Pin Top Sites
• Smart Address Field
• Top Sites: Fresh News
• Managing the offline databases
• Web Inspector:Gives quick and easy access to the richest set of development tools ever included in a browser
• JavaScript Debugger
• Elements pane to watch page structure
• JavaScript Profiler
• Inline Progress Indicator
• Windows Native Look (Windows OS)
• Windows Font Rendering

So, download Safari 4, the fastest web browser to experience its speed.

Download Safari 4: Download for Mac & Windows