I recently oversaw development of a game that heavily used fla->swc->flex. Lots of fancy animations and stuff were done in an FLA, then exported to an SWC with class names etc... and then a Flex4.6 app was wrapped around them providing application logic, and facebook integration. Don't know if this is relevant to you, but the game was released recently (has a ton of users) and is: https://apps.facebook.com/houseoffun/
It's not common in my experience, but it is a path that *is* taken often enough to be of mention. -Dave > From: cfram...@adobe.com > To: flex-dev@incubator.apache.org > Date: Fri, 15 Jun 2012 08:17:04 -0700 > Subject: anyone use Flex Component Kit for Flash? > > Does anyone use the the flash/flex integration feature (aka the Flex > Component Kit for Flash) that allows you to create components with Adobe > Flash Professional and export them for use with Flex? > > See > http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/flash/UIMovieClip.html > > Pre-Flex 4 the Flex Component Kit for Flash was available as a separate > download but Flex 4 shipped with it in frameworks/projects/flash-integration. > Unfortunately there are binaries in this directory. > > Carol