Facebook - doing well by doing good, a Beacon unto others?

Its good to be able to report good news from Facebook, their strategy over the last few months has been fairly..."interesting" . However, they have just taken the step of opening up their social network a bit more. As they put it on their blog - they've essentially set up a Javascript library that:

allows you to make Facebook API calls from any web site and makes it easy to create Ajax Facebook applications. Since the library does not require any server-side code on your server, you can now create a Facebook application that can be hosted on any web site that serves static HTML without any server site scripting.

What the library effectively does is de-skills the task of building client-side applications, opening it up to a far wider potential customer base. As always with Facebook, this is still not a fully open platform, more an attempt to extend its platform onto others' real estate. As the The Blodget Blog notes:

For obvious reasons, Facebook wants to resist going completely "open" and allowing members to export their information and relationships at will, as Facebook might lose its control over its core asset (the billions of relationships among its millions of members, a.k.a., the social graph). This move seems another smart step toward a hybrid strategy: Allow app makers (and Facebook) to extend social-graph functionality to the web, gather more app users, and recruit more members--but retain full control over the social graph itself.

Also what's not clear is how this service inter-relates with Beacon, especially how it impacts client sites - one assumes it works in a similar way to existing sites, if so it has hugely increased Facebook's reach and ability to take user behaviour data..

Update - a bit more clarity on my meaning following a few emails - the thing is, Facebook, by doing this, allows others to start to integrate services and thus open Facebook out that bit more (in ways Facebook probably hasn't thought of and necessarily wants, I'm sure) - but it will happen nonetheless. But Beacon is lurking in the background I am also sure, so be careful....