Core Midi

[Kurt Kaufman]

Here's some speculation:
If the appropriate port can be selected, then I would think that  
Revolution is capable of streaming the data.  The real challenge might  
be the synchronization methods, such as MTC (MIDI Time Code) and SMPTE.

A more recent development:
How about RTP-MIDI? This looks promising, and I would imagine that  
Apple has a detailed reference for the specification. In brief:

http://en.wikipedia.org/wiki/MIDI#RTP-MIDI_Transport_Protocol

-Kurt