One of the folks over at XDA has posted a link to what seems to be an HTC Mozart WP7 ROM update which includes NoDo. It looks like a European Rom update so may not work on Australian Mozarts. While the ROM reports to be build 7355 apparently after flashing the version number changes to the final nodo build – 7389.
More research will be done before flashing mine just to ensure I don’t end up with a brick. However if any one wishes to take the risk and please note the risk is your own, the ROM download link is here, and feel free to report back how it went but do it with caution.
More @ http://forum.xda-developers.com/showthread.php?t=984239