i had a response from a guy from yamaha on motifator.com also. i hoped it would work the virus TI/powercore/ any dsp device way... but it does not..
when you connect it to mlan it's basically just an audio interface where you can stream a couple of audio tracks to the device and it gives you a couple of inputs where it streams audio itself.. but to do this it must be made your asio device, so you can't use any of your other outboard gear while using the motif..
a pretty lame implementation if you ask me... so now i'm not sure if i should get the motif or the roland xv5080 anymore, if i just want good sounds to replace 60% of the sample libraries that take huge amounts of ram and take ages to load... and a lot of times arn't even THAT good..