Despite all the hyperbole over Apple's world's fastest and most innovative browser claim, there's a lot to genuinely like in the beta of Safari 4 -- along with a few minor quibbles. Apple boasts that the Nitro JavaScript engine in Safari 4 runs JavaScript 4.2 times faster than Safari 3, up to 30 times faster than Microsoft's Internet Explorer 7, and more than 3 times faster than Mozilla's Firefox 3.

Safari 4 Is More Than a Speed-Loader