If the room isn't already over capacity come drop on by my session! Moscone West 2009 @ 11:30am.
If you can't know that it's based in large part upon a blog me and my co-presenter did: Developing Selective Force.com Queries through the Query Resource Feedback Parameter
I'm told it will be recorded, and it might be possible to convince me to do another run of it at the San Francisco Developer User Group if anybody wants.
[Update] It was recorded!