Although I like the improvements on the T2....Let me add to my previous list just in case Yamaha is reading for future units

No More Sharp corners on body
Link MFD to Registration with transpose also
Add separate controlled addition Mic input
XLR Mic inputs
Ability to Play Arranger/SMF/WAV/Mp3 at the same time with separate slider controls.
Use high quality tacky rubber coated knobs & sliders, wheels, for better grip also paint wont peel off.
USB 2.0
Increase Flash memory size