Updated the saving model and validator inheritance chain to better support members, have the members editor display data and posting/validating data - now need to get the correct fields being displayed and the correct tab/layout but coming along very nicely!

src/Umbraco.Web/Models/ContentEditing/MemberSave.cs

@@ -0,0 +1,20 @@
+using System.Runtime.Serialization;
+using Umbraco.Core.Models;
+using Umbraco.Core.Models.Validation;
+
+namespace Umbraco.Web.Models.ContentEditing
+{
+    /// <summary>
+    /// A model representing a member to be saved
+    /// </summary>
+    public class MemberSave : ContentBaseItemSave<IMember>
+    {
+        [DataMember(Name = "username", IsRequired = true)]
+        [RequiredForPersistence(AllowEmptyStrings = false, ErrorMessage = "Required")]
+        public string Username { get; set; }
+
+        [DataMember(Name = "email", IsRequired = true)]
+        [RequiredForPersistence(AllowEmptyStrings = false, ErrorMessage = "Required")]
+        public string Email { get; set; }
+    }
+}