I don't see any information on the current availability of this within Titanium.
Does anyone know if this will be available in the (near) future?
What about information on any of the other 4.0 APIs.
There also is an open-source module here: https://github.com/tzmartin/TiEventKit
I hope that Appcelerator will be adding this to the base Titanium APIs considering they have for Android.
What you are looking for is exactly provided by the saqCal module (EventKit iOS Calendar for iPhone/iPad) on Marketplace - 20% off in September: