I've been looking into the new Pixel Bender tool  ( http://labs.adobe.com/technologies/pixelbender/ ) and experimenting with shaders for FP10. Shaders are new to Flash and have stirred interest among "proper" games programmers, who generally hate Flash. They're coded in C/C++ and allow the processing of complex filters to be passed to the GPU. (That's just the basic outline, it's potentially far more powerful than that)

I've done some of the tutorials on http://www.gotoandlearn.com and also hunted around for examples of the shader code. In my search, I stumbled upon this: http://lacquer.fi/conduit/pixelbender/index.php

This is a beta version of a tool to help you build complex pixel bender filters via a GUI. It's 50 euros for a pre-order and you'll immediately get access to the beta version.

The potential for this is huge. Eye popping effects, never seen before in Flash, will be coming soon. I'm not sure FP10 will use this to its full potential (seems a bit of a clunky implementation), but hopefully FP11 will. So if you want to stay ahead of the game, become a bender!