There was article on Slashdot pointing Microsoft visual earth service (similar to google earth) messing up on Apple Campus in Cupertino (SF Bay Area).
Here is the Microsoft version and here is the google version of the same.
Also some user on slashdot pointed out that visual earth still shows NY Twin Towers. Check out here
It seems that Microsoft is using old images and didn't care to update due to lack of competition. But now with Google in the field, it will be required to update these images.
This is similar to Internet Explorer saga. Microsoft decided to update Internet Explorer (will be in version 7 soon) only when Mozilla Firefox was gaining market share.
Anyways, this was an interesting find !