>Today, the as3-commons-reflect [1] is widely used, but I believe the best >option would be to add this feature natively.
I disagree. That project has many uses and a lifetime far outside of the Flex framework. That would mean everyone interested in those APIs would need to use the Flex SDK (if it moved here) or there would be two copies of code that need to be kept in sync (a man with two watches never knows what time it is) Mike