MobileMe Mail Addressing
One of MobilMe’s touted features for their webmail interface is the ability to auto-populate the “To” field with addresses as you type. You know, like everyone else on the planet does it. But this feature doesn’t work except for the first time you log in. So the way to use it is to log out, log in and click new message. Then the Address Book is no longer grayed out and the “To” field auto-populates as you type.
But only that one time.