It did not appear earlier and some people thought it’s not coming and that the announcement was an April Fool’s excitement.
But when I loaded the game around 9pm (Singapore time) the auto update instantaneously appeared. For about 2.23MB of data, it brings a wireless microphone calibration tool (only for LIPS mics for now), a floating announcement bar, faster loading of songs preview in the ‘Get Music’ menu and a new ranking comparison (globally and against your friends) in each song menu. It seems that you need to re-sing the song again to enter your position in the ranking. I’m not sure whether I missed any other visual updates.
There is also a new song for download in the local marketplace. Robbie Williams and Nicole Kidman’s "Somethin’ Stupid" which was available in other regions is not available in our local menu. Bought it straightaway.
I also notice that two of my downloaded songs went missing and I had to re-download them from the marketplace. Not to worry, they are free.
One of the much welcomed features is sending a challenging request through LIPS will trigger an automated message on Xbox LIVE, so the other party will be updated immediately.