This project approches a little more advanced customization of the ASP.NET Identity 2.0 RTM framework. The project accompannies a blog post which walks through the basics of implementing integer keys instead of the default string keys which Identity uses out-of-the-box. The project starts with the Identity Samples project available from Nuget.
The post which accompanies this example can be found at ASP.NET Identity 2.0 Extending Identity Models and Using Integer Keys Instead of Strings
If you find errors, or have suggestions for improvement, please feel free to open an issue, and/or submit a pull request.