Midi into Flash
As part of some Sancho Plan development i've build an app that will send MIDI into Flash. The app, which has the catchy title of MidiRemote, sends note on, note off and controller data to Flash via Local Connection. All the flash movie needs to do is create a Local Connection object with id 'midi_swf' and listen for 'onMidiTrigger', 'onMidiTriggerOff' and 'onMidiController' messages (with channel, note and velocity parameters).
In our tests the latency isn't too bad, but if there are too many hits at the same time then the local connection buffer gets a bit clogged up and a delay appears while it processes all of the messages (so it probably won't be much good running against a gabba track :-)).
Download the Mac app here, Windows exe here and an example flash file here