Safari 4 is claimed as the world’s fastest web browser by Apple. Safari 4 brings a bunch of new features, including a flashy new Top Sites view, a completely redesigned Windows UI, and support for some impressive emerging Web standards. safari 4 beta got 100/100 on the Acid3 test. (Firefox 3.0.5 scores 71/100.) Safari 4 is designed for Mac OS X 10.5.6 and Snow Leopard (upcoming). Still many OSX86 user doesn’t upgraded to 10.5.6 yet. For the peoples who don’t have 10.5.6 and want to try the Safari 4 beta …