I was at the Mr. Sound Audya demonstration this past Sunday and was impressed with a feature on the Audya called "Keytunes". This allows you to bring up a prerecorded audio sample from Harddisk immediately with no lag time.

I think the possibilities for these are huge, for example, I could prerecord hundreds of lengthy samples of live instruments playing solos, and bring them up in real time as I'm playing a style.

Can Korg do this? (Yamaha cannot). It would need to stream from HARDDISK/ NOT from RAM.