cool! i spent like 2 hours today at work reading up on granular synthesis....was reading some like "papers" i guess(for lack of somethin better to call them) MIT professors and shit wrote about it. pretty intriguing, some went right over my head tho.
as for the clips i didnt listen to them as i was at work...i generally dont put too much faith into clips and often dont listen to them cause they sometimes suck and don't give the unit justice...it also just gives u a preconcieved notion of what your expecting to hear from it later on...i like gettin a new piece of gear with fresh ears and without any expectations of how it will sound. (not that ill be gettin this particular unit, but just generally speaking)
having said that...they prolly only scratched the surface, as it seems this thing is capable of a helluva lot...prob endless sonic capacity...i mean its a grain edit, realtime sound manipulator/mangler, stereo delay, filter bank, with a polyphonic synth section all wrapped into one.
here is one of hte papers:
http://www.audiomulch.com/~rossb/rb-gst/BencinaAudioAnecdotes310801.pdf