Yamaha Europe sold a "regi-stick" usb storage thing for Tyros 2 that was loaded with registrations for specific tunes.

seems to me that technology might be applied to this discussion: I, for one, would buy a stick dedicated to the modern sounds (particularly drum kits) that are lacking in the T2. yamaha doesn't have to build content from the ground up -- they can transfer some of those Motif series arps to multipads (or styles)....eventually if this proved viable, I'd imagine a whole line of these, for R&B, for world music, etc...