Nitro, WebKit's JavaScript interpreter used in Apple's Safari, is about to get a lot speedier as Apple is seemingly looking to close a speed gap between its browser and both Google Chrome's V8 and Mozilla Firefox's SpiderMonkey engines.
The vast majority of today's web applications use JavaScript for interactivity and other purposes so any improvements in a browser's JavaScript performance would normally trickle down to the end-user level, resulting in snappier web browsing...