RadTreeList will expose client selection and client-side API for the official Q3 2010 release, expected in the middle of the next week. Web services/OData binding will be conferred for one of the next releases of the product.
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? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items