This looks pretty exciting. AllPeers, over at their weblog Peer Pressure, have posted screenshots and a brief description of the AllPeers 2.0, a powerful peer to peer tool, which will be fully integrated into Firefox.
I'm pleased to see that the AllPeers team have decided to build this as a sophisticated and slickly integrated extension rather than building an entirely new browser. The advantages to going the extension rout, and disadvantages to the forked codebase rout, are covered in several Peer Pressure blog posts.
I don't have any sort of undue influence (compromising pictures of the AllPeers team, for example,) but I'd sure like to be one of the early beta testers for this awesome sounding tool.