I just finished my RIFE presentation at JavaZone 2006 and I think that it went really well. However, even though I deleted 1/3rd of my original presentation to shorten it, I still went 20 minutes over time and had to skip certain parts. Luckily, after I said to people that they should feel free to leave, most of them stuck around to hear more about continuations and see the demos.
For those that are interested in the RIFE development experience with real life demos, you can download all the material of my presentation, including the pre-recorded demos and packaged sources of the examples:
https://rife.dev.java.net/servlets/ProjectDocumentList?folderID=5955
I'm really enjoying JavaZone, it's surprisingly well organized, the quality of the speakers is excellent and Oslo is an awesome town. I hope to come back next year.