I just got this announcement from Oracle:

Just Released: ODP.NET and Oracle Developer Tools for Visual Studio .NET Betas
ODP.NET for ADO.NET 2.0 and ODT for Visual Studio 2005 have just been released in beta on OTN. Download this software today to start using Oracle with Microsoft's most recent release of .NET software! Try out new features, including:

Watch for my integration of this as well as PostgreSQL into the Microsoft .Net Enterprise Library 2.0 in my NCS v 2.0 library.