I think I heard that Paizo has about 50 people total. I don't know how many of those work directly on the RPG though - they do a lot of minis, comics, novels, retail, OP, and stuff. I wonder how many people WotC has total?
We will very quickly have 20 people working on Pathfinder-related stuff from an Design/Editing/Development POV. In other words, the folks who work full-time on creating the print products that we make. That does not include the 5 members of the art department who do nothing but Pathfinder stuff. It doesn't include our Pathfinder licensing manager who spends his time on the minis and other licensed products. It doesn't include Erik who pretty much focuses on Pathfinder most of the time.
-Lisa