Amid all the hoopla yesterday with Mark Zuckerberg apologizing for trying to pull a fast one over 50 or so million people, Facebook apparently left a parting gift: the ability to read full messages and wall postings in your alert emails.

Mike Arrington is absolutely ecstatic (“Dear Facebook: Thank You. Thank You. Thank You.”) by this small upgrade because it means you no longer have to take the time to actually log in to Facebook just to see what the message or post says.

Better yet might be if Facebook included a way to directly respond via email and have it go in the Facebook conversation thread or on that person’s wall within Facebook (right now hitting reply to a message will allow you to respond directly to their email address only). This might be nice for mobile users without the luxury of using the iPhone’s brilliant Facebook app.

At least Zuckerberg didn’t include this as a post script on his apology letter. That would have just reeked of “yes, I’m sorry blah blah blah, but check this out – I know you guys wanted this, and I delivered!”.