Actually for what its worth, I think if Yamaha ARE going to provide a simple 76 note keybed to sit directly under the T4(or 910 for that matter) it would certainly be back on the radar for me.

My only gripe with dual keyboard setups, is the height required to get to controls on the lower, which then of course raises the height of everything else including the laptop.

I remember, I think, seeing some sort of 76 note keybed under the T4, on one of the early promo vids from Yamaha, and now I cannot find it...But I may have been mistaken.

The other big advantage, is that when required to do gigs in really confined space, simply disconnect the lower.

Dennis