How do you now configure the membership, profile and role manager using the new MVC template with DotNetOpenAuth enabled? I don't see the configurations in the web.config so how do you now implement a custom profile provider?
With the new MVC4 template, it is very relevant. Instead of using a specified ProfileProvider:Profilebase, all authentication is handled by OAuth and Webmatrix.Security. Out of the box, it doesn't look like there is any support for extending Profilebase. Instead it looks like you will have to create your own table to hold any custom profile attributes. Take a look at this: http://www.asp.net/web-pages/tutorials/security/16-adding-security-and-membership.