[ppml] [address-policy-wg] Those pesky ULAs again

As I mentioned earlier, one of the barriers to getting management buy in on 
IPv6 is the fact that the standards keep changing, and this is a good 
example.  To use an analogy, the financial boys won't sign off on starting 
the building until they get a final floor plan.  Keep rewriting the spec to 
try and get it 'perfect' instead of 'good enough' and it'll still be in 
redesign as the last IPv4 address goes out the door?

What problem are we trying to solve here?  Is it a valid concern, or are we 
fighting the last war and blithly ignoring what will be the real problems 
with IPv6.  (Hint, you don't know what it is either.  If it's the same 
problem, it's solved.  If it's something you can think of, it's probably 
being solved.  It's novel.)