diff -r 1a7c13ac7348 -r 15181001ee61 Hardware/Hardware.cs
--- a/Hardware/Hardware.cs	Sat Feb 27 15:55:17 2010 +0000
+++ b/Hardware/Hardware.cs	Sat Feb 27 20:08:13 2010 +0000
@@ -43,6 +43,10 @@
 
     private List<ISensor> active = new List<ISensor>();
 
+    public IHardware[] SubHardware {
+      get { return new IHardware[0]; }
+    }
+
     public ISensor[] Sensors {
       get { return active.ToArray(); }
     }
@@ -63,7 +67,9 @@
       }
     }
 
+    #pragma warning disable 67
     public event SensorEventHandler SensorAdded;
     public event SensorEventHandler SensorRemoved;
+    #pragma warning restore 67
   }
 }