WPCentral reports that Windows Phone Mango has been released to manufacturers and is also with carriers for testing.

In the recent Windows Phone Developer Podcast episode, we have some new information detailing the status of the next update for Microsoft's mobile platform - "Mango". This shouldn't come with shock to readers since we've been following the wind with the Fujitsu IS12T handset (as well as Nokia's "Sea Ray"). According to the podcast; "Mango" has been RTM (released to manufacturers) and is also with carriers for testing.

  Mango Released to Manufacturers and in carrier testing (Updated: Not yet)