[LAU] JACK-native MIDI monitor?

Hi all, Does anyone know of a MIDI monitor (a la KMidimon, or Qmidiroute, which I usually use) that has native support for JACK MIDI? I recently upgraded to a Saffire PRO 40 Firewire audio interface, and its MIDI ports, which are exposed via JACK only, don't seem to be working consistently, at least when used with ALSA apps via a2jmidid. I'm pretty sure there's nothing wrong with a2jmidid, but it'd still be nice to take it out of the equation for debugging purposes. I did fine one app, called Midimon: http://sourceforge.net/projects/midimon/ but I'm not sure if it's still maintained; it had some build issues (but they were easy enough to fix). Thanks Leigh