The next big thing on the Web? Easy, e-Service URLs become entry points to reliable, once and only once delivery of messages or
asynchronous business processs. Good article by Jon Udell on Infoworld about this.
Even if there was not an opportunity to play golf, I would still be tempted to attend Digital ID World. Identity issues pop up everywhere these days and Web Services create a whole other set of identity issues that are only now coming into focus.