someone's working on a solution . . . at least one that'll work for you pc users. check out his guy!
http://www.bestweb.net/~slinkp/pw_linux/su700notes.html
i don't care as much about sequencing on the desktop (although that would be nice, and I'm sure we'll see the day when we can sequence and record into performer, protools etc. and then just dump what we want into our sampler's(LISTEN UP YAMAHA!) and hit a gig, instead of endless hours peering into some two inch sampler screen) as I am concerned about getting files INTO the sue from a zip. I'm using my sue more and more everyday, It's a great machine. I considered akai and roland, but the sue's versatility won out. I've heard people complain that they can't seamlessly switch from song to song but that's nothing . . . just use something else (drum machine, 505, 303, vinyl) to make the transition. You know, MIX it up.