Thank you for choosing RadControls for WinForms.
1) The DataBoundItem is used for bound mode and its value is controlled by the external object of the Data Source. This behavior is implemented in our list based controls and is the same as in the standard System.Windows.Forms control set. If you need to store a custom object, please use the Tag property instead. If this does not satisfy your requirement, please describe your case in greater detail. This will allow us to provide you with a helpful response.
2) You can use the new Find to search Text or setup predicate function to find a node. Here is a simple example:
I hope this information is useful. Let me know if you need further assistance.
the Telerik team
Q2’11 SP1 of RadControls for WinForms is available for download (see what's new); also available is the Q3'11 Roadmap for Telerik Windows Forms controls.