After a bit of thought we’ve returned the Group Calendar module of OpenPsa 2 to using horizontal layout for days. The earlier versions used a vertical layout designed with Tigert that proved to be a problem with larger number of resources. This should solve the scalability issue:
In addition to being more flexible, the new calendar layout provides the events in the hCalendar microformat. The vertical layout of org.openpsa.calendarwidget will be modernized into similar state and made into a configuration option useful for small organizations. Alan’s XUL calendar interfaces could also be useful although OpenPsa already integrates with desktop calendars and mobile phones.