The RadScheduler control is one of the latest additions to our offering and we are actively working on it.
We will definitely be working on all of the features that you mention as you are not the only person to ask for them. Unfortunately I cannot promise that these features will be available in the upcoming SP release (due this week). However they will most probably be implemented in time for the Q1 2009 release.
the Telerik team
Check out Telerik Trainer
, the state of the art learning tool for Telerik products.