--- a/include/Motion.hpp	Sun Oct 30 11:25:51 2011 -0400
+++ b/include/Motion.hpp	Mon Oct 31 00:35:34 2011 -0400
@@ -80,6 +80,9 @@
 public:
   FeatureGraph(float _minDistance, float _maxDistance) : minDistance (_minDistance), maxDistance(_maxDistance) {}
 
+  // add vertex, includes adding links to current vertices
+  // find connected components, check if old enough, if so, remove
+
 protected:
   struct FeatureConnection {
     float minDistance;