Are streams possible in Flash, ActionScript and Flex, as in C # and Java?
Alas, there is no multithreading in ActionScript . However, you can fake it with a pseudogap (see the link for more details), although this has its problems.
I am working on a project that will use the Pixel Bender to perform calculations in a separate thread. I hope you will have a blog soon. At the same time, vote for this feature request: https://bugs.adobe.com/jira/browse/ASC-3222
I know this question is OLD, but you are still looking for a multi-threaded solution in flash (hahaha). Starting with flex 3.4 there are threads.
http://esdot.ca/site/2012/intro-to-as3-workers-hello-world
Not at present. You can use pseudo threads if you want. http://blogs.adobe.com/aharui/2008/01/threads_in_actionscript_3.html