Below is a screenshot shows an existing SWF that i built for mobile using Flash Pro and the Swiffy html result of that swf . Of course there still are limitations, but I am sure it's a matter of time until you can completely publish your Flash Pro content to html.
Some of the limitations are :
Scenes are not supported. (1 occurrences)
Filters are not supported by (Mobile) Safari. (21 occurrences)
Blend modes are not supported. (6 occurrences)
Bitmap caching is not supported. (1 occurrences)
9-slice scaling is not supported. (10 occurrences)
ActionScript 3.0 is not supported. (30 occurrences)
Streaming audio is not supported. (139 occurrences)
OpenType fonts, as introduced in SWF 10, are not supported. (2 occurrences)
I know that many of the developers and designers thinking of Flash Pro in terms of the Flash runtime and it's the authoring tool for that platform only. This is actually changing and we are going to see Flash Pro as content authoring tool for different formats. Swiffy is just one way to demonstrate that and I am positive that we are going to see many other extensions being built on top of Flash to export to different formats.
The advantage for Flash Pro users is that there is no learning curve. Thousands of developers and designers know the tool and are familiar with it. All what you need to do is to install Swiffy and publish to HTML. That simple.
You gotta love Flash Pro!!!!