While NoDo is still in the process of being tested and rolled out across networks, HTC have played a wild card and have began rolling out their own update. While we previously covered the news that Dell is looking to push out their own separate update post-NoDo, but this is the first attempt from a manufacturer on the platform.
[Edit: Actually, Samsung has been doing it with the Focus for various users too]
According to the information received at TheUnwired, users are reporting that they too are receiving the update while being prematurely on NoDo, so it seems as though ChevronWP7.Updater isn't such a huge problem. This - of course - is an update from HTC and not Microsoft though.
Our own George Ponder has received the update for his Surround (updates the firmware to 2250.09.10307.502) and notices that their is no noticeable change in performance, and no word has been located as to what the update actually add and/or fixes. Could well be simply HTC showing off. Have you received the update, do you notice anything different?