Snip...
>
>I disagree.  A number of Smalltalk classes depend upon the '='/hash 
property.  Either '=' should be defined to be identity with the default 
hash, or it should be redefined so as to assure the '='/hash 
concordance.
>
>

Kent Beck's book on design patterns for Smalltalk is very specific in 
stating that ANYTIME you define "=" you must also define a hash that 
makes it work the way you intend. A reverse way of saying this is that 
you should never depend on the inherited meaning(s) of equality.

Tim