I intended to go to this but couldn't. Best to do then is read up on the goings-on, starting at the p2p conference page [1], but don't miss the report on the keynote by Our Hero Professor Lessig [2], various weblogs of O'Reilly staffers [3], and Bill Joy announcing a new library of p2p primitives [4] for java. Really, really sorry I missed it, sounds like a great event. [note 2000-2-21]: there's a call for participation [5] out already for the next event, to be held in Washington, DC, September 17-20, 2001.
Links:
[1] http://www.openp2p.com/pub/a/p2p/conference/index.html
[2] http://www.openp2p.com/pub/a/p2p/2001/02/16/lessig.html
[3] http://www.oreillynet.com/weblogs/subject/20
[4] http://www.openp2p.com/pub/a/p2p/2001/02/15/joy_keynote.html
[5] http://conference.oreilly.com/p2p/call_fall.html