In 90% of the example projects I see for ActionScript / Flex I notice the following two coding conventions:
1) private member variables with getters/setters start with an underscore as in "_credentials"
and
2) interfaces start with the letter "I" as in "ISessionInfo"
Coming from the Java world, I find both of these conventions unnecessary and annoying. I am about to start a new Flex project and was planning on NOT following these conventions unless they are truly are widespread, standard conventions in the Actionscript/Flex world.