diff --git a/README b/README
index 54115e773a..d2598b7bfc 100644
--- a/README
+++ b/README
@@ -108,6 +108,10 @@ Design decisions:
   to MMBackendProtocol, however this must not change the state of Vim!
 - If MacVim or Vim dies, the NSConnection is invalidated and connectionDidDie:
   is invoked.
+- Input may reach the backend whenever the run loop is updated.  This can cause
+  problems if more input is received whilst already processing other input.  At
+  the moment new input is dropped if the backend is already processing other
+  input.
 
 
 Keyboard stuff:
diff --git a/TODO b/TODO
index f8fd9e8c6b..13eaea5fc5 100644
--- a/TODO
+++ b/TODO
@@ -1,5 +1,8 @@
 Active:
 
+- Listen to NSSystemColorsDidChangeNotification and update highlighting
+- System colors don't come out the same as in other apps (as measure with
+  Digital Color Meter)
 - Add support for 'mousehide' (needs to check p_mh)
 - Build Vim (make) from Xcode project
 - Cmd-W in about box sends vimMenuAction: instead of performClose: