Can I use Google Labs features in my Mail and Calendar?
Category: Google Apps
Absolutely. Google Labs has some great additions to the built-in functionality (enabling features such as the "preview pane"). We have no restrictions on using the Google Labs features. You will do this, however, at your own risk and we cannot guarantee that everything will work perfectly. If you experience a problem with your Mail or Calendar, one of the first things you may want to try is disabling whatever Labs features you have enabled.