You can download the App:
iOS (coming soon)
Or just check out the website. For those of you who live stream also check out the new streaming interface. Your live streams will be featured on game pages when they are live so discovery is significantly better than on YouTube.
Check it out, have fun, and feel free to give feedback (here, in the app, in comments, wherever you want!).
Also if you're at PAX Prime, come check out our booth. It'll be... somewhere? I don't know where it is, but it'll be there!