PAINT ON YOUR VIEWPORTS!!

I just saw this tool "DTools" ,from "Eric Legare" ,looks real great tool for all animators, you can paint and keyframe 2d drawing animation directly in your viewport.. (pity is not working for max 8);it´s great that this comes for Max users..Looking on Cgtalk i found this two more scripts: one from "Bobo" "PencilTool" and another from "Paul Neale" "PEN whiteBoard"
And for Maya users "Jason schleifer" ,made long time before one..

All the links :

Max:
http://www.ericdlegare.com/DTools/DViewPaint.zip

http://www.scriptspot.com/bobo/mxs7.../PencilTool.zip

http://paulneale.com/scripts/PEN_whiteBoard.zip

Maya:

http://www.jonhandhisdog.com/shh-life-er/?page_id=169