With the release of Windows Phone 7, developers using WCF Data Service Client often find themselves needing to preserve the state their data context is in, and be able to continue from a previously saved state. This is called “Tombstoning” an app – the process which the phone framework...

There are many situations where you may encounter an undesired 404 “Resource Not Found” exception while querying against an ADO.net Data Service. For example, you may be writing a Linq query where the filter criteria is specified at runtime by the end users. When your query becomes input sensitive, there...