If you are planning on attending the User Conference this year, I suggest you go ahead and register and book your hotel. Registration ends July 7th and hotels fill up fast in beautiful San Diego.
The theme for the conference this year is GIS - Communicating Our World
Planning has been underway for months and there will be several developer related workshops and events. So checkout the agenda builder and the official UC blog.
"Take care of the earth and she will take care of you."
Updated with correct year.