BTW, a quick consideration - it might not be too late to briefly postpone the launch in order to setup a board of directors for the project and setting up m-of-n addresses.

I would happily serve in such a board, as I'm sure other trusted members of the community - you might gain more trust in MasterCoin by removing yourself as a benevolent dictator / point of failure.

You could also take the extra 1-2 weeks to revise and publically review the protocol.
After waiting so much time, why the sudden rush to execute without a proper public review process?