Acaba de salir la actualizacion de Safari 5.

Cabe resaltar soporta html5 :)

Safari 5

Apple released Safari 5, featuring the new Safari Reader for reading articles on the web without distraction, a 30 percent performance increase over Safari 4, and the ability to choose Google, Yahoo! or Bing as the search service powering Safari's search field. Available for both Mac and Windows, Safari 5 includes improved developer tools and supports more than a dozen new HTML5 technologies that allow web developers to create rich, dynamic websites. With Safari 5, developers can now create secure Safari Extensions to customize and enhance the browsing experience.

Source wikipedia and #iphone