Is there a commerical AS3 (2D) game engine?

Hi all,

I am just wondering if there is any commerical game-engine middle-ware or library for ActionScript 3 (I am big fan of “don’t reinvent the box unless necessary”). I have checked out some Open Source ones such as PushButton and my google-fu is too weak to turn up anyone that is commerical (is that even allowed by Adobe in the first place?)

Any input would be welcomed.
Thanks!