I was able to attend Google I/O 2015 which was held at Moscone West in San Francisco, California on May 28 and 29.
It's really a different experience to watch the I/O keynote live. If you haven't watched the keynote here, you can watch it here. You can also videos of the sessions and more at https://events.google.com/io2015/videos.
After the keynote, we were given the new Cardboard. Then, we went on to the different sessions and talks happening at the same time. Like last year, I went to most of the talks (instead of the sessions which are being livestreamed and recorded). Most of the talks though have a lot of interested participants and the space is not enough for everyone.
There were a lot of cool stuff announced at I/O: Android M Developer Preview, Android Pay, Chrome Custom Tabs, Brillo and Weave, Cardboard Expeditions, Google Photos, ATAP's projects (Jacquard, Soli, Vault, Abacus, Ara), and many more.
The video below shows the highlights of this year's Google I/O
Attending Google I/O is really a great learning experience. I'm looking forward to cool stuff I could build next.