Looks nice.  I have yet to ever see any alternative roots get any significant uptake,  though the namecoin idea of a distributed
registration service would be nice to see take off.  Since the us govt is the one who seizes the most domains though, why did you pick the us domain to run it from?  Would it make sense to at least offer another tld just in case?  Or is the idea that if the government shuts it down, it would already have sites people wanted to see, and show the problem more clearly and get people to change to resolve the .bit root directly?