Apple heats up the browser wars with Safari 4

Just when you thought the browser wars couldn't get any weirder, here comes Steve Jobs rumbling onto the scene like the Stay Puft Marshmallow man tromping over buildings in downtown Manhattan.

If last year's release of Safari for Windows seemed like an experiment, Apple's release Tuesday of a beta version of Safari 4 for Mac and Windows makes it clear this is going to be the messiest fight since Dan Aykroyd and Bill Murray battled Zuul and Gozer the Gozerian in the movie Ghost Busters.

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