I think I misunderstood the question, but I won't delete my post.

Eventually, it's going to happen anyways, so why not be the 1st with an open concept keyboard:
1) A full fledged arranger, with all the appropriate buttons, extra buttons and sliders for future use.
2) Ability to add/delete/change voices that can be purchased by the user from the mfg. or 3rd parties (open concept).
4) On board efax of course.
5) Styles can be added/removed, including supplied styles.
6) Choice of keybeds (61,76,88 weighted)
7) Upgradeable operating sytem.
Yamaha already owns Steinberg, they might be able to easily slide Hypersonic 2 into the new keyboard.
Starkeeper

[This message has been edited by Starkeeper (edited 05-01-2006).]