Extended conses aren't going to happen. A two word data structure that's basic to the language would be transformed into a multiword structure... besides, compilers and codewalkers and such quickly transform the list-based source into a structure-based representation. If you really want properties associated with cons cells, you can do it with a hash table.
FOAF updates: Trust rankings are now exported, making the data available to other users and websites. An external FOAF URI has been added, allowing users to link to an additional FOAF file.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!