This afternoon Facebook’s Open Stream API, which launched in late April, will be getting a few new additions that make the API significantly more robust and easier for developers to integrate.
One feature that will be familiar to Twitter and FriendFeed users is a new ‘via’ attribution, pointing out to your friends how you submitted your latest update. This can add to the virality of applications like Seesmic and web services like Yelp — if you start seeing that many of your friends are using a certain app, you’re probably more likely to check it out for yourself. Before now Facebook had shown the icon of whatever application or site was posting to your profile, but it didn’t actually name it.
Another major addition to the API is enhanced functionality for Facebook Pages. Page administrators will now be able to post updates to their Page from third party applications that support the Open Stream API. Before now there were some loopholes that allowed developers to integrate support for Pages, but the API didn’t officially support it. Now, these features are fully baked in.
For more, check out the Facebook blog.