Ok, I got an update from the man himself:
Basically, I plan to do a Visual WebBuilder demo first (about 45 minutes, I
guess) and do a COM/ WinDNA example later. This will most likely be one of
the least advanced talks I have done so far. It should be a real-life
example of a COM environment almost everybody should be able to follow...

This should be really great, I am certainly looking forward to it and hope, if you can come you will.
John