In a series of tweets published this morning, corporate vice president and manager for Windows Phone Joe Belfiore has outlined a series of updates that will be going live on the Windows Phone platform.

Belfiore touched on the subject of the number of social networks available for integration on Windows Phone, noting that while only a few social networks could be configured before, the platform now supports sharing to all social networks.

As for the much awaited lock screen app, Belfiore stated that it was undergoing beta testing on devices with over 1 GB RAM, and that work is underway in applying the finishing touches. He said that a dev preview will be announced shortly. On the same subject, Belfiore mentioned that it might be a while before the lock screen app is made available on devices with 512 MB RAM. As for the reason this feature will not be available soon on low-memory devices, he said that it was to "make lock fast/stay in memory."

Belfiore also mentioned that app updates for Facebook and Skype are incoming, and stated that Microsoft is actively partnering with Facebook in trying to eke out any lingering bugs in its app.