I'm a little curious as to what you mean by "Twitter-like sharing". Wasn't the old way more like Twitter?

I'm largely talking about where I see Facebook going, rather than just this specific update.

Overall, I think the Twitter-like feature updates have been numerous and obvious.

Well then you're missing something that some of us haven't seen. Could you answer his question instead of vaguely sidestepping it, please?

The specific features happened when status updates changed from being a minor (in the right sidebar) to major part of the website, with the large 'What's on your mind' box at the top. It was a while ago, rather than being specific to this update.