I was hoping for something a little more fleshed out than this, given the high quality of the free materials I have previously seen from White Wolf. I feel that Geist has been let down a little.
'Dem Bones' provides an overview of an NPC who is gambling with a purpose. It is interesting, but to make it a worthwhile investment for your players, it will be completely up to you to build a story around the NPC to engage the PCs.
If you are stuck for interesting ideas for NPCs then it might be for you, but I didn't see too much to latch on to with this product.