OSCON 2013 was held from July 22 to July 26 in Portland, Oregon. I presented the Java EE 7 hands-on lab there as well as a session on WebSocket/JSR 356. This was my first time to the revered conference.
OSCON was a unique and valuable experience. I would definitely look forward to doing it again some time. More details, including slide decks, lab materials and code examples, posted on my personal blog.