[Bioc-devel] classes for gene sets

Hi all,

I'm writing some functions dealing with sets or lists of genes. There 
has been a discussion about classes for representing gene sets:
http://wiki.fhcrc.org/bioc/GeneSet_Class_Discussion
Has someone implemented the discussed ideas or do I have to implement my 
own classes? It seems that the discussion has been stop a few month ago.

Regards,
Hans-Ulrich