Currently the usage of Telerik OpenAccess ORM in WP7 scenarios is limited to providing data to your client application through a WCF service deployed on a server. The product itself cannot be used in a Windows Phone client environment and we do not have immediate plans for extending it in that direction.
We will keep you informed about any future developments in the area of WP7 client applications.
the Telerik team
SP1 for Q3’11 of Telerik OpenAccess ORM is available for download.