"and "wetware"....pen and real ink? I thought is was a reference to the warm wet grey stuff between my ears..."

Nope, you had it right... Ms. Nichols confirmed that 'wetware' is indeed used in reference to our grey matter.

i suspect pen and ink would fall into the 'treeware' category, though treeware is traditionally reserved for description of the Japanglish instructions that come with electronics, hardware, etc.