Re: last call?

I also want to issue my agreement with Werner on interoperability. 
Recent releases of GnuPG and PGP offer an existence proof of 
interoperability. (I'll go further and say that in the PGP cases, the 
interop problems we used to have were caused by our not upgrading 
pre-2440 behavior to be 2440-compliant.) The places where there *are* 
interop problems, they are caused by PGP 2 backwards compatibility. In 
2440, backwards compatibility is encouraged but not required; it's a 
SHOULD. Since one of the remaining items is to demote that SHOULD, we 
don't need to consider these issues. When you do this, Ian's 
implementation is a third one. There is interoperability.
        Jon