Aquafadas (http://www.aquafadas.com) has released MotionComposer, an US$149 Mac OS X (10.6.8 or higher) app for creating interactive Web content using Flash and HTML5.

Publishing to the Web, tablets, and smartphones often requires interactive content created in Flash and HTML5 at the same time, because Flash isn’t supported by some platforms. MotionComposer is powered by WebKit and animations created by it run on the latest browsers, tablets, smartphones, and iOS devices such as iPhone and the iPad.

MotionComposer exports Flash / HTML5 hybrid animations. Just by copying the code generated by the app into existing HTML documents interactive animations can be published instantaneously, according to the folks at Aquafadas.