Google I/O is always a favorite, although I was disappointed by the change from 3 days to 2 days for 2014, and the conference is always very packed. That said,

Google I/O is always a favorite, although I was disappointed by the change from 3 days to 2 days for 2014, and the conference is always very packed. That said, the enthusiasm and energy level is very high and you'll meet a lot of fantastic people.