Google pays no attention to copyright notices. You have to use their code: <meta name="ROBOTS" value="noarchive">
The "your in unless you tell us otherwise" policy is pretty much the same as the phone book. Your home adress and phone numbers are published unless you "PAY" for an unlisted number! I can just see all the search engines jumping on that band wagon at some point in the future! Don't want us to cache your pages ... no problem! That will be $200.00 for the first year please and $100.00 for all subsequent years.
Yep, I can just see it now! :)