sorry to turn the debate back on, but i figured i'd do a google search on it
http://www.google.com/search?q=condu...en-US:official
looks like the black foam is definatly conductive, the pink foam is "esd" anti-static.......seems like it is conductive, just enough to disipate a static charge....which might be enough to destroy some electronic components if your attempting to run something on top of it.