We need the ability export calendar events via iCal added eventlist component in Joomla 2.5. There are some instructions from the developer of eventlist (link below) at the following link which explains how to add this functionality:
[url removed, login to view]
The client has specifically requested they be able add a single event to their smart phone calendar or add all the events in the event list to their calendar. In other words, if they are on the page with the full description of a single event, they can add this event to their calendar by "clicking a button." If they are on the page with multiple events in the list, they can add all these events to their calendar by "clicking a button."
So we need the iCal export added to the eventlist view and the details view templates.