Spend half an hour to write this totally worthless app (shot). Well, the notes were streaming in random and you just type c d e f g a b to clear them.
Now I guess I already waste enough time on craps. Hope I can start porting my DiagramKit (from GNUstep) to OSX this Sunday so I can continue my development.
A side note here that Maliwan is going to be redesigned, from DAG to changeset model. This involves eliminating ivar from factories and intensively exploiting command patterns in Objective-C with invocations. You don't know what I mean? Neither do I! Ha!