However, it admitted performance would vary and was dependent on system config, network connection and "other factors”.
Apple unsurprisingly tested Nitro’s abilities on an Intel-based iMac. But more interestingly, the machine was running Microsoft’s rival operating system Vista.
Other new features packed into Safari 4 include Top Sites that give the surfer a visual preview of frequently visited pages, full history search and improved tab browsing.
The browser, which is compatible with Mac OSX and Windows XP SP2 or Vista, supports HTML 5 to allow web-based apps to run offline. It also come with CSS 3 to enable web graphics using reflections, gradients and precision masks.
Apple also took the opportunity today to remind world+dog that the newest browsers, including Google’s Chrome, are based on the firm’s own open source WebKit technology.
Black sweater-wearing beta poets can get their hands on the release here. ®