If we're looking for a use case for being able to construct a hierarchy of vevents, I could imagine it would be useful in a calendar with a fancy interface: if you're viewing a month at a time, it could collapse all the presentations down into one event labeled ABC Conference, but if you zoom in to a week or a day, it would break out into the individual presentations. It could also use shading, coloring, a container shape, or something to indicate that those presentations are linked together as part of a larger event.
Granted, this sounds closer to a gimmick than a useful feature, but it would be much easier to implement if it was possible to unambiguously determine a hierarchy of events. - David _______________________________________________ microformats-discuss mailing list [email protected] http://microformats.org/mailman/listinfo/microformats-discuss
