> The only thing that prevents you from having other combinations of 
> multiple package memberships is that there is no UI that allows you to 
> specify which combinations of packages a method should be part of. The 
> category hack is great because it works with existing tools, but 
> existing tools don't allow for methods in multiple categories. If you 
> fix that you get your multiple package membership in Monticello for 
> free. Alternatively provide a UI to specify which other packages the 
> method should be part of, and you're there, too.

That would be very useful !

Stef