+ definitely needs throttling for the internets
+
+ players stats (who's connected, their ping, and game-relevant
+ things) should be sent to clients
+
+ some method for authenticating a player might be nice
+
+ maybe stale and inexistent chunks should be visualized (e.g. by
+ drawing a semi-transparent box around them)
+
+ make a chunk data counting a little safer
+
+threading
+
+ (clientside) networking and disk IO are prime candidates for threading