We have been highly utlizing the calendar file (.ics.) tokens in our emails. It helps us to get a feel for how many people are interested in a conference session for instance, without having them register for a specific session.
I would love to see the capability to add these same token files to a landing page. Here is an example of a page that would benefit from the use of these tokens. http://info.docufide.com/UserConferenceInvite_AACRAO_2013.html