Hmm, if jumping up from 1MB to 2MB is controversial then perhaps we should try incrementing to 1.1MB or something just to get our feet wet.  If we like it then we can try 1.2MB and so on.  Waiting until the backlog is huge is not wise.  The tension between full blocks = higher fees and barriers to adoption is certainly interesting.  Personally I think we should favor adoption for now and defer cranking up fees until a little later.