diff -r 3d66ca73df55 -r 9f157d9c725b src/FingersDance.ViewModel/MainViewModel.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/FingersDance.ViewModel/MainViewModel.cs	Tue Oct 13 19:33:13 2009 +0200
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Collections.ObjectModel;
+
+using FingersDance.Data;
+
+namespace FingersDance.ViewModels
+{
+    public class MainViewModel
+    {
+        #region Attributes
+
+        public Dictionary<String, UserViewModel> Users = new Dictionary<string,UserViewModel>();
+        public SessionViewModel Session = new SessionViewModel();
+
+        #endregion
+        
+        #region Methods
+
+        public Project CreateProject(User u)
+        {
+            if (Users.ContainsKey(u.Email))
+            {
+                if (Session.Projects.ContainsKey(u.Email))
+                    return Session.Projects[u.Email];
+                else
+                {
+                    Project p = new Project(u, new Cutting());
+                    Session.Projects.Add(u.Email, p);
+                    return p;
+                }
+            }
+            else
+            {
+                AddUser(u);
+                Project p = new Project(u, new Cutting());
+                Session.Projects.Add(u.Email, p);
+                return p;
+            }
+        }
+
+        public void CreateSession(string name, string path)
+        {
+            Session = new SessionViewModel(new Session(name, path));
+        }
+
+        public void CloseSession()
+        {
+            Session = null;
+            Session = new SessionViewModel();
+        }
+
+        private void AddUser(User u)
+        {
+            UserViewModel uvm = new UserViewModel(u);
+            Users.Add(u.Email, uvm);
+        }
+
+        #endregion
+    }
+}