Here is what I was thinking about recently: Implement this only as a platform to get in/out FIAT money. eg: 1 USD=0.99 virtual USD, people who do the physical exchange of the money get 0.01USD commission. This way there will be many people participating in the system. once you have virtualUSDs you can use them on a distributed exchange easily.
We're going to be open sourcing the entirety of the platform, but we've been hesitant to do so yet because of the communication overhead of doing so (we're very strapped on time and really want to focus on development) ahead of the fundamental structure of the nodes themselves being sufficiently mature to open it for community review + discussion -- thus waiting until we finish up the first release itself.
We've got a fairly fleshed out incentivization model in place in the whitepaper that we think will incentivize all points of contact in a transaction that utilizes the exchange node network.
Last note -- we had and still have no plans to directly monetize the exchange structure itself (thus the challenge to raising funds), we had plans for ancillary monetization that would allow us to make money without compromising the integrity of an anonymous and decentralized network.