This ShiftPWM library looks fantastic and is a very nice implementation of Shift Registers. I have been working on a Matrix display (Seems there are alot of us doing this) and I am wondering how ShiftPWM would hold up being used in a matrix? I understand that it is not setup to run a matrix but could it? Or would there be too many issues? I found another thread by Zuluriney (http://arduino.cc/forum/index.php/topic,69235.0.html), he is trying to do the same thing. Seems he has it working but I doubt it would be optimal.
I am not a great programmer but could the Library be written to do this very fast software PWM for a matrix?
If not then still a very cool thing to have in the tool collection. Thanks Elco!