Google's annual I/O conference kicks off today in San Francisco, and you can watch the company's big keynote event live right here. The festivities will kick off starting at 12:30 ET.

Expect demos of the upcoming new version of Android, 4.1 Jelly Bean, as well as an announcement about the first Nexus tablet, which is reportedly being built with Asus.

We'll have more coverage of everything you need to know about Google's announcements throughout the day.