Each JavaOne attendee has been issued a Java Card with an embedded contact-less MIFARE (rfid) chip, the same configuration as the Sun employee badges. The badges of each attendee are scanned as they enter the breakout session rooms.

We've partnered with Business Objects (http://businessobjects.com/) to analyze the data (only badge numbers are captured, there's no association with names or other identifying data.) They're generating reports such as the 10 most popular sessions, breakout of attendance by attendee type, time, etc. The charts/reports will be accessible over the show web at Moscone.

There's Java technology all over the place: on the card scanner systems (all Sun hardware) capturing data from the physical readers. There's also Java technology at the middle layer gathering the data and preprocessing it for Business Objects. And Business Objects themselves use Java struts, servlets and jsp at their presentation layer, all running on a W2100zM in the Moscone NOC.