There is a green section in the UI for Xamarin page which gives information about which control is supported where: http://www.telerik.com/xamarin-ui
With the current lists given there, it should be concluded that we support Chart and Calendar for Xamarin Forms.
Soon, you can expect SideDrawer and ListView for Xamarin Forms as described in our Roadmap for Xamarin
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 Feedback Portal
and vote to affect the priority of the items