Super ActionScript3 optimisation and a type-safe tweening engine - goodies from Shane McCartney

A couple of months back I worked on a project with super talented Flash developer (and all round nice guy) Shane McCartney. A few days ago I read his blog for the first time and found some awesome stuff on there including Tweensy - a type safe and super-fast tweening engine and not one but two great posts on optimising ActionScript3 scripts for better performance. Cool stuff!