Thank you !!!
Vector should be faster too?
It doesn't inherit from ListCollectionView like ArrayCollection though, so that means it can't be used as a dataProvider? Are there any plans to have a 'VectorCollection' class in actionscript that can be used directly as a dataProvider?
Vector is a lower level class like Array. Vector should be faster than Array in some cases.
I believe the ActionScript language needs to support generics before we'll see something like VectorCollection.<MyType>, but you might find this post useful: http://www.digitalprimates.net/codeslinger/2010/05/18/vectorcollection/