Logisim was last updated in 2011, and just a ~month ago Author announced he is ceasing development. http://www.cburch.com/logisim/retire-note.html http://www.c

Logisim was last updated in 2011, and just a ~month ago Author announced he is ceasing development. http://www.cburch.com/logisim/retire-note.html http://www.cburch.com/logisim/retire-note.html He probably could make some money by tooling it into a ios/android app. EveryCircuit is similar in spirit and quite popular.