The official source of information on Managed Providers, DataSet & Entity Framework from Microsoft
(this post was originally posted here)
Steve Lasker has posted a screencast / video over on Channel 9 providing an overview on the various ADO.NET programming options available for SQL Server Everywhere, including an updateable resultset (SqlCeResultSet).
While on the subject, check out the new SQL Server Everywhere team blog and info on the SQL Server Everywhere CTP. Steve's SQL Server (three s') Everywhere FAQ is also a good resource.