I think that will be a very good feature. Just create a gantt control available over this platform. A gantt control like UI for Silverlight will be a fantastic one.
When using Wrap Layout, with grouping and RowHeight is not default the scrollbar size is incorrectly updated until all elements are measured once.
Expose constructors of Command contexts allowing setup its properties and call Grid commands manually.
Provide API to get delta on itemsSource changes in DataBoundComplete event in scenarios like incremental loading, adding, removing, etc.
RadGridView change position when edit is commited. Scenario: Telerik Grid Example->Edit Example. 1. Open on Simulator 2. Scroll down 3. Edit row 4.Commit edit