On January 9, 2007, at Macworld SF, Jobs announced Apple's iPhone, which would use a mobile version of the Safari browser.[16]
On June 11, 2007, at the Apple Worldwide Developers Conference, Jobs announced Safari 3 for Mac OS X v10.5, Windows XP, and Windows Vista. During the announcement, he ran a benchmark based on the iBench browser test suite comparing the most popular Windows browsers,[17] hence claiming that Safari was the fastest browser. Later third-party tests of HTTP load times would support Apple's claim that Safari 3 was indeed the fastest browser on the Windows platform in terms of initial data loading over the Internet, though it was found to be only negligibly faster than Internet Explorer 7 and Mozilla Firefox when loading static content from local cache.[18]addresses layout and CPU usage issues, among others.[15] Safari 2.0.4 was the last version to be released exclusively on Mac OS X until version 6 in 2012.