My top ten (or so) favorite new technology prospects in
the world of Flex.
In No Particular Order:
Degrafa (Declarative Graphics Framework)
OpenFlux
flexlib
flexMDI
APE (Actionscript Physics engine)
Papervision 3D
Away3D
Allurent Display Architecture
Flex Viz Graph Lib
Tweener
Most (if not all) of the above libraries can be found on Google
code. If not, just Google them and you will find the promised land.