unknown.
have u tried it?
i switched a few weeks ago, once you get your head round it its nice, i like the new look, and am looking forward to seeing the new look calendar, when it happens.
been having problems with it: getting the WE'VE UPDATED OUTLOOK PLEASE REFRESH YOUR BROWSER message.
If you search it, this has been going on for 1.5 years at least, with no Microsoft fix except "Update your IE" and "Clear Your Cache."
Really!