Glorp has a similar idea called Dialect which it uses to level the  
platforms.

On Feb 1, 2007, at 10:55 PM, Alan Lovejoy wrote:
> Bruce Badger wrote:
> "More recently I have put together the Sport library with the aim  
> of being
> able to write most code to a consistent portable >interface (that  
> of Sport)
> and then have different implementations of Sport for each dialect.   
> Sport is
> a kludge, though.  ....
>
> Another option for inter-Smalltal portability is the Passport  
> library that I
> developed in order to make Chronos work on VisualWorks, Squeak and  
> Dolphin.
> It provides the class ResourcePath, which is similar in many ways  
> to VW's
> Filename class.
>
> For more information, see my recent blog post on Passport:
> http://chronos-st.blogspot.com/2007/01/filenames-and-inter- 
> smalltalk.html