Basic object model for mongo-nhibernate abstract data layer

DomainObject-simple.cs

public abstract class DomainObject : IDomainObject
{
  public virtual object Id { get; set; }

  #region Overloads of Equals & GetHashCode
  // ...
  #endregion
}

User-Name.cs

public class User : DomainObject
{
  public virtual string Email { get; set; }
  public virtual Name Name { get; set; }
}

public class Name : DomainObject
{
  public virtual string First { get; set; }
  public virtual string Last { get; set; }
}