The keynote is expected to start at 12:30 EST and you will be able to watch it using the live-stream above. If you would like to watch it on the Developers blog, you can find that link here.
Google has a lot to talk about and on the agenda are an update to Android (Jellybean), a likely announcement of a new tablet, and also a cloud service too. It is highly likely that Google has a few hidden secrets too.