I'm very interested in the management of regular events as well and would like to know how you see this developing.
I need to implement a calendar module for an amateur orchestra for their regular meetings & rehersals. At the moment none of the XOOPS calendar modules offer the ability to enter something like "every Tuesday at 7:30 until 10:00" and then delete the events which won`t happen - for example because of the Christmas and school holidays.
If I knew that in the near future this feature would become available in a module, I would use this module with manual entry of repeating events until this feature was implemented.
Is this on your feature list?
Hopefully,
Alan