A few months ago, Microsoft demoed Mango for Windows Phone 7 and during the demo they compared their browser vs. others. Microsoft did a test between a device running Mango, an iPhone 4 (running iOS 4), and an Android device. During the HTML5 performance demo, iOS’s Safari did poorly against Mangoâ€²s Internet Explorer and Android’s browser. Safari registered 2 frames per second while Microsoft’s Mobile IE scored a 26.
Since then, it hasn’t taken long for Apple to respond. WinRumors reports that in the iOS 5 beta, Safari now outperforms Mango by scoring a 31 when the same test is performed.
In Mango, the browser uses hardware acceleration for HTML5 but Apple hasn’t shared plans to do the same. iOS 5 and Mango will ship in fall this year.