I know that it's probably a no go for you US guys but there will be P4 Day - the annual Paneristi gathering taking place in Frankfurt, Germany on Saturday 5th November.
Not sure how many people are coming but it's always good fun.
Here's a link on how to register and information:
http://www.vwmann.de/pday4/pday4.html
I'll be going so I hope to see anyone who can make it :-)
Shane