Nexus S 4G ICS update starts rolling out

A few weeks ago we told you Android 4.0 was coming to the Nexus S 4G soon, then just a few days ago we saw a leaked update based on Android 4.0.4.  Sprint just let us know that the update is officially rolling out, starting now.  The update brings a number of new enhancements from Ice Cream Sandwich, including Android Beam, a new camera interface with panorama mode and the new UI enhancements in Android 4.0 that we've come to love.  Sprint's email says that the update will be automatically downloaded to the user's phone when it is available, so keep an eye out for a prompt to apply.  It will be sent out in waves, and they make no mention of a manual download process.  For those of you rocking a stock Nexus S 4G let us know if you get the update, and if you have any success manually pulling the update.