Supposedly, you'll be able to load your own drum grooves in (but could do that with an SD-1, too) but even Ketron can't stream the guitar voices. Those are in ROM and played directly. Don't ever expect to do that until the Audya2 (if ever).
James, what is the #1 reason folks don't buy the Audya? Price? Sound? Styles? I doubt it is the lack of editing (few use that much, anyway

)...
What do you get from them?