Along with the "Facebook Subscribe," the social networking company will soon let you update Twitter right from the Facebook.
Once you link your accounts, your Twitter account will be updated every time you post a public update to Facebook. Note: Only posts whose privacy you set to Public using your inline controls are eligible for this.
As point 14 in the document embedded below states:
14. Can I update my Twitter followers from Facebook?
Yes, soon you will be able to update your Twitter account directly from Facebook. To get started:
1) Go to facebook.com/twitter
2) Link your profile or Page to your Twitter account
Facebook profile posting to Twitter will come within the next week, a Facebook representative tells TechCrunch.
As of now Twitter has no comment.