I dunno, I think the biggest "holes" are in the Poser module itself -- just a lack of access/functionality to some of the more interesting things Poser can do. For example,

1. Lack of direct python access to P5's material room (nodes and shaders.)

2. Lack of (interesting) python routines to manipulate magnets. For instance, while python can apply magnets to a character, I don't think there's any direct way to add the character's clothes to the magnets' zone as well. (If someone knows how in python, I'd be mighty grateful for the info.)

As for other problems with standard modules, I do remember Mac P5 users reporting some problems with the Tkinter installation on OSX. Anyone know if this was fixed?