The standard satellite / map view buttons gets replaced with real live image of that view.
Google maps has received a small but neat feature. The standard layer button on top right have been replaced by live image of that layer. So, if you are actually viewing some location in map view mode then you would see that the satellite view layer button shows the actual satellite view of area under the button. Pan around in map mode and the satellite button shows that locations satellite view.The same is true if you are viewing in vice versa layer mode, as the button on top always shows inverse image.
Although this is a small change but it does look pretty neat. Check out the updated Google maps @ maps.google.com