Pratibha Mallya, one of the developers on the System Center Data Access Service team has just posted a new blog post on the System Center Platform Blog about how to use some of the more advanced capabilities of the ObjectQueryOptions class.  This is useful information to know when you are getting large data sets and you want to retrieve the objects in batches, in a certain order, etc.

http://blogs.msdn.com/b/scplat/archive/2010/09/01/using-objectqueryoptions-configuring-object-retrieval-from-the-cmdb.aspx

Thanks Pratibha!