Did any of the other dragonmech books ever become PDFs I can buy and download other than rumors/lies?
They were pdfs but with the ending of the d20 system license they have been removed. Or at least I assume that is why they were removed. They could be modified to removed the d20 system logo and other things allowed by the d20 system license but I don't think that is being done. I'm not sure how well they sell so it might not be worth it to invest the time to do so at least in the short term. My biggest complaint about 4E has been the ending of the d20 system license. Dragonmech, Morningstar, Old DCCs, Dragonstar, Mightnight and other products are no longer available in pdf. I don't have the space for large rpg collections anymore. Luckily I picked up the Dragonmech material before it disappeared. Wish I had pickup so of the other stuff.