The problem is that html5 (languages, tools, support) didn't grow up as fast as people were trying to kill flash :) That leaves developers without proper tools to migrate their products into html5 easy, fast and painlessly.
In our country Androids are most widespread, but it really doesn't matter, because you'd like to support all the platforms. But the different devices (and their browsers) support html5 to the different level. And that's yet another sea of blood if your project is a bit complicated.
"I wrote my first iPhone APP with Adobe Flash CS5...crazy."
That's what i was saying - let's wait until Adobe will solve most of the problems and propose export to html5 for the projects like TW or provide some tools for easier migration. No need to rebuild everything from scratch. Some things are already in works:
My Tourweaver components: http://www.optitecha.lt/categories/3