Thank for your feedback and involvement. Yes, such control is in our plans for development. Most probably it will be called BusyIndicator. Unfortunately for the time being we cannot commit to any specific date or release its availability.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.