Not close at all, actually. I'm sure you could use blender to extract an obj from a collada file, as well as textures.. but thats still and unrigged figure, and I'm willing to bet that the grouping and poly flow/density for spore creatures isn't poser freindly at all.. and THEN you also need to rig them, BUT you cannot redistribute them even if you do.

If ther's now simpe rigging transport between major 3d applications liek lightwave, max, modo, n such, I hardly think that we'll see one that magically makes a spore creature posable in poser anytime soon.

You could probably use them as static props though, and as a matter of fact, that might be cool in Vue for otherworldly scenes...

Way too many people take way too many things way too seriously.