Some articles on AS 3 for more advanced users
Grant Skinner has some good analysis on the backend garbage management of AS. Unlike the previous AS versions, AS 3 is more like a “traditional” OOP programming language e.g. Java or C. Thus there’s more resources problem for programmer to think when they program in AS 3.
Read the article here:
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
http://www.gskinner.com/blog/archives/2006/07/as3_resource_ma_1.html
Visit his blog for some other related articles.