Using the next-gen Nitro engine, Safari 4 Beta should be running JavaScript over 4 times as fast as Safari 3, and up to 30 times faster than IE 7, or three times as fast as Firefox. Well, at least that's what Apple says, and if the above is not enough, you should also know that the Nitro-powered Safari 4 loads HTML pages three times faster than IE 7!
To grab the Safari 4 download, simply go to the official Safari page and click the Free Download button. Why would you do it? That's a good question, and the answer goes right here:
"Thanks to Top Sites, you can enjoy a stunning, at-a-glance preview of your favorite websites without lifting a finger. Safari 4 Beta tracks the sites you browse and ranks your favorites, presenting up to 24 thumbnails on a single page. You can even customize the display by pinning a favorite site to a specific location in the grid. That locks it into position, so you know just where to find it every time you open Top Sites.
Wonder which sites have changed since your last visit? Sites with a star in the upper-right corner have new content. A single click opens the page and updates its thumbnail. Whenever you want to return to your ever-evolving Top Sites page, just click the new Top Sites button in the bookmarks bar."
Add Cover Flow to that one, and you get an amazing Web browsing experience. Since Safari 4 Beta is available for both Windows and Mac OS X, your only excuse for not downloading it is the "Beta fright," so if you don't have it, give this beauty a try, it won't disappoint you!