SQL CE 2.0: Calling Engine.Dispose() After Every Query?

After making several hundred queries against a SQL CE 2.0 database (through NetCF/ADO.NET), I begin getting a SqlCeException: "Not enough storage is available to complete this operation."

Microsoft speaks to this situation in the following hotfix:
http://support.microsoft.com/?kbid=827837

When I contacted them to receive the hotfixed ssce20.dll, they described the problem as SqlCeDataReader and SqlCeDataAdapter not releasing their memory resources after they went out of scope. In addition to using the hotfixed binary, they also advised me to call SqlCeEngine.Dispose() after every query to force SQL CE to release resources, as shown in the "finally" block of the code below.

I have a couple of questions about this:

(1)
Will this cause a lot of performance overhead for me, especially if my application makes frequent queries using the following code?

(2)
Can a cache an instance of SqlCeEngine and call Dispose() on that cached instance repeatedly, so I can avoid having to instantiate a new SqlCeEngine each time?


SqlCeConnection conn = null;

try
{
conn = new SqlCeConnection(connectionString);
dbCmd.Connection = conn;
dbCmd.Connection.Open();
dbCmd.ExecuteReader(CommandBehavior.CloseConnection);

<use the reader>
}
finally
{
dbCmd.Connection.Close();

// Add the following code to release resources?
SqlCeEngine engine = new SqlCeEngine(connectionString);
engine.Dispose();
}