Blender does export multiple objects but in one file as mentioned repeatedly, Poser just doesn't have the capability to separate the files on import.....soooo wouldn't that be the mighty Poser that fails?:biggrin:

Seriously though I understand what you want to do and Blender does not currently support batch exporting of OBJ files with the exception of animation frames.

The way around this is to follow nruddocks suggestion about scripting on the Poser end. You could adapt the Wavefront obj importer from Blender to Poser Python specs.

The advantage would be you would import 1 object file that is separated by the script as opposed to exporting multiple separate objects and importing them individually.

Pret-a-3d would be the one to ask on this since he knows the scripts pretty well. Contact him here on Renderosity.