I think movies and animations are not the problem, those would be easy to playback if the codecs are right, there are planty of games, some 3d, and some interac

I think movies and animations are not the problem, those would be easy to playback if the codecs are right, there are planty of games, some 3d, and some interactive applications that use Flash and Flex, there are tons of APIs that Flash supports and implementing all of those exactly as in Flash was a huge task for the community, since Flash is not used in new projects just as legacy very few developers are interested in working on that in their free time.