Flipboard, one of the best iPad apps for reading through your Facebook and Twitter feeds in a magazine format, just received a major update that brings  a bunch more features to the table. You can now view your Google Reader subscriptions, Flickr feeds and groups, and the app also boasts more features for Facebook and Twitter as well. You can use the app not only to check out all the content that's out there, but now it's easier to add your own updates, photos, and articles back into your social networks as well. Hit the video for a look. Flipboard is completely free.