I'd love to use a P2P spreadsheet, and with the right hooks, it wouldn't have to do all that Radio UserLand does, it could leverage off Radio UserLand through local interapplication hooks, through COM and Apple Events. It's now 2000 and machines run at 933 Mhz. We could start assuming the OS-level connections are fast. Making P2P work is like picking up seeds cast on the forest floor. To think that all P2P software is Napster-like is to miss the point.
Music is a great catalyst, it gets people talking, but it'll go a lot further than that.
Jeff Barr , the author of Headline Viewer , said it really clearly. RSS is Really Simple Syndication. He's worked with users on both ends. If RSS weren't so simple, it wouldn't be so popular. Jeff also has an EditThisPage.