Google launches Swiffy to convert Flash SWF files to HTML5 (WebKit based browser required):
Swiffy converts Flash SWF files to HTML5, allowing you to reuse Flash content on devices without a Flash player (such as iPhones and iPads).
Swiffy currently supports a subset of SWF 8 and ActionScript 2.0, and the output works in all Webkit browsers such as Chrome and Mobile Safari. If possible, exporting your Flash animation as a SWF 5 file might give better results.
Your browser may not display Swiffy's output correctly. You need a Webkit browser such as Chrome or Safari for the gallery and previews to be displayed correctly.