Well, specifically i was thinking gnucleus supporting supernodes/ultrapeers. I know it's recent, but since the page states "Last Updated : December 27, 2001" i'm sure someone would be just jumping at the opportunity to update it with something... anything..

Generally i was thinking it just needed a bit more detail on each of the pages, for example who was doing what, or what version a feature was introduced. The fact that they all just state "A small number of clients implement this proposal for experimental purposes" isn't indicating much work is going on.