RE: 240/4

I'm trying to avoid setting the expectation that 240/4 is just a simple extension to 10/8 and thus people should use it *today* when they run out of space in RFC1918.

I don't believe you. If you were really trying to "avoid setting the expectation" then you would be communicating with the authors of http://www.ietf.org/internet-drafts/draft-fuller-240space-00.txt to see that the IETF gets their wording right. This is IETF work and IANA work at this point, not NANOG work. --Michael Dillon