Google Labs has a new useful tool for developers: Swiffy. The application allows you to convert Flash SWF files to HTML5, so you can use any supported modern browser to load the content, even if the browser happens to be Mobile Safari. "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."
Google's gallery includes two ads and two simple games that look pretty well when converted to HTML5, especially when you're using Chrome.
Swiffy uses some SVG features that are only available in WebKit browsers, so that's the reason why you can only use it in Chrome and Safari. Android's browser for smartphones doesn't support SVG and it's likely that the Android 3 implementation doesn't support the required features.
Unfortunately, the code generated by Google is difficult to edit, so you still have to go back to the original Flash file. Adobe has its own tool for converting FLA files to HTML5.