It seems that, since PD can't be hosted in my primary tools for production (logic and cubase), its uses have become somewhat limited. Sure, I can mangle samples in it (to be imported into another editor for touch up work, then exported to my samplers), but that's about all it's useful for it me at the moment.
I can make midi synths, but since they can't be rewired (or hosted) in my DAWs, I loose out on a lot of functionality.
If you're using MS Windows, PdVst should work with both Logic and Cubase (if not, I'd like to hear about it.) There isn't vst-instrument support just yet, but it should be coming very soon.
http://crca.ucsd.edu/~jsarlo/pdvst/
Joe jsarlo@ucsd.edu