silverlight 3: Any free database available for silverlight(stored in isolated storage)?

Question

Any free database available for silverlight that can be stored in isolated storage?

Answer 1

There is this POC of SQLite in isolated storage, but I don't know the current status: http://www.itwriting.com/blog/1695-proof-of-concept-c-sqlite-running-in-silverlight.html

Answer 2

There is this approach which uses XML/Linq:
http://pietschsoft.com/post/2008/10/Silverlight-Client-Side-Database-via-LINQ-and-Isolated-Storage.aspx