Here is what is being said about the update so far that I could find.
Taken from the Motorola Forum.
"I'm not seeing any battery related items, but there appears to be updates for about 80 different files and fixes. The updates include 50 of the system apps (APKs) and three of the market files. There's no documentation on the update from Google yet, so I'm not certain what it is supposed to address."
I got this update on my wifi only xoom last week. It has a update to the market place to fill the screen with pictures and make it harder to navigate. It also breaks rdp clients. Not sure if there are any improvements to make the bugs worthwhile. Is there a way to roll it back without resetting it?