(http://www.squeaksource.com/DGV)
I put the latest&greatest of the whole shebang (Datagram Toolkit, Gossip, and the DGV project) on SqueakSource. On the Gossip and lower layers not much has changed; the DGV stuff however has been overhauled quite a bit and now is completely peer-to-peer based. Of interest to the casual p2p freak is especially the DGV-Network Service package. It has 'swarm download' (DGVBlobTransfer), distributed data services, p2p event notification.
'DGV' can be loaded in any ol' Squeak image. DGVwxUI will only load in a wxSqueak image.
There's a new Tric-P2P package that matches prerequisites with the DGV stuff.
Biggest issue at this moment is that UDP quickly breaks down with higher traffic volumes under Win32, it seems (Linux works fine, but when sending/receiving lots of UDP packets things go wrong under Win32 - something's rotten in the Win32 socket plugin?). Top priority item for next week :)
Have fun,
Cees