We haven't written anything on the blog yet, but the feature is live already. It allows you to get notified about changes to your blog via SMS. Check it out under Settings->Text Messaging, and be sure to let us know your thoughts on it! There's also a new upgrade in the Upgrades store which allows you to do even more - perhaps the most exciting part is the added security of two-step authentication.
So, what do you think about WordPress Text Messaging so far?
The blog I need help with is en.blog.wordpress.com.