In a comment on the latest S-series geomorph, Zornhau asked about getting player POV versions of the geomorphs, so that he can lay them down as tiles, covering certain portions that the players can't see yet. I've been debating this for the past several days.
I would think that geomorphs would not really work as tiles. Since I don't use tiles, I'm not certain on this. However, it seems to me that even if the geomorph were missing obvious "secret door" symbols, and even if the GM covered every portion of the geomorph that hasn't been explored yet, there'd still be some obvious clues to unexplored elements. For example, I've been trying to make most of my geomorphs have multilevel elements, similar to those created by Dyson Logos or Risus Monkey. In S8, the large room with a secret door in one wall also has a passage and 20' square room below it, outlined with a dotted line. If the GM reveals either room, the other room will be known. If I were to make a player POV version, there'd have to be two versions, one for each level. That doesn't seem feasible to me.
Additionally, I would think that the POV geomorph wouldn't be very useful, because many people would be using minis or counters on a different scale than the geomorphs. What I would think people who use tiles would prefer would be counters for the various elements, like the sentinel statues, scaled to typical tile scale. Perhaps a printable PDF of such counters?