You may have noticed some rather substantial changes to Google's suite of Web services. Some, such as changes made to Google Documents, came a while ago, and were far more subtle. Two fresh implementations are more jarring: Gmail's, and Reader's. For Reader, the changes have been made and they look here to stay. For Gmail, you can avoid them for a little while, but Google warns that you can only "revert to the old look temporarily." Read: you won't be able to cling to the open doors of that airlock forever. So, let's dig right in.