Heads up HTC HD7S users, if the leaked internal memo is right on the money, it looks like you may be receiving the update to Mango today. At the speed Microsoft is rolling out the Mango update, we’re not surprised that it didn’t take very long before it reached existing Windows Phone users. Make sure your Zune software is up to date and wait for the notification that informs you of the update. If you’re the impatient type, you can attempt to refresh your update manually to see if it’s available for download.