--- a/TODO	Fri Jan 02 08:12:14 2009 +0000
+++ b/TODO	Fri Jan 02 09:04:31 2009 +0000
@@ -12,6 +12,8 @@
  * Make sure the mouse is where it's supposed to be when un-grabbed
  * Test native window codepath
  * Add keyboard enumeration / name query API
+ * Implement NET_WM_PING and NET_WM_PID/WM_CLIENT_MACHINE (?)
+   - http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html#KILLINGWINDOWS
 
 Wish list for the 1.3 development branch:
 http://bugzilla.libsdl.org/