I would like to see a library of great sample voices.
I would like the frickin' styles to be normalized so I can use user voices and Reg Mem on any style without having to futz with the balance all the time.
How about being able to use the Music Finder with the HD.
How about making the next T model the size of a PSR3000, which I believe could be done, but I believe Yamaha feels that it must be bigger and look different for aesthetic purposes so they can get their $3K.
Also, I'll take mine in black.
Other than that, I think I would be hard pressed to go to another brand, in that I'd lose way too many things that I don't hear happening on the others.
Scott