MS Patterns and Practices Releases the RepositoryFactory Guidance Package
MS has released a new patterns and practices guidance package for data access. It can be found on code plex here: http://www.codeplex.com/RepositoryFactory
David Hayen has a few web casts on this. You can find these on his web site [here http://www.pnpguidance.net/Post/NewGuidancePackageMicrosoftDataAccessTechnologies.aspx]. I'm in the process of reviewing this. My initial look suggests it is promising. I can't wait to see how similar it is the the data access type of projects I am building using the MS Enterprise Library's Unit block IOC container, and how well it conforms to the Dependency Inversion Principle.