I would like to see a calendar extension for PunBB. The features I'm looking for are:
Show upcoming events on start page (preferable integrated with portal extension).
A "calendar page" that shows the events in a monthly view.
Forum members can create their own events.
Events should have a name, description, date - time (start and end) and location.
A guest list, forum members can easily confirm that they're attending an event.
A checkbox to allow comments, which would create a new forum thread in a specific forum section for the event.
I basically want something like Facebook's "Events". For now I'm using Google Calendar (embedded in an iframe), but it doesn't offer a very good integration with the site.