Yes, I agree with Mark. I'm part of a big university environment. We would like to use Exchange to do universtiy-wide calendaring. But it is very difficult to recommend to the powers that be when OWA 'light is the theme of the day for non-IE web browsers. Only a day view? Not able to subscribe to other people's calendars? Very non-intuitive free-busy scheduling assistant? People like using Google & Zimbra calendaring better. We have a large Windows community but the lack of support in your product for mainstream browsers like Firefox and Opera has us looking elsewhere. I remember reading that you would have a more fully featured web interface for Firefox users. Is this ever going to happen? We have a hard time selling use of your product to a wide and diverse community without it.