I've uploaded pictures I've taken during JUC Boston and JUC Berlin.
JUC Berlin pictures starts with pre-conference beer garden meet-up. See Vincent Latombe gives a talk about Literate plugin. I really appreciated his coming to this despite the fact that the event was only a few days before his wedding:
In JUC Boston pictures, you can see some nice Jenkins lighting effect, as well as my fellow colleague Corey Phelan using World Cup to lure attendees into a booth:
Pictures from the cdSummits are also available here and here.
If you have taken pictures, please share with us as your comment here so that others can see them.