This was an interesting post because it is refreshing to confirm that someone at Yamaha pays attention to what is said in discussion groups about their products. The level of interaction between customers and manufacturers is often unecessarily constricted.

One thought may relate to some of the questions being tossed up here: the large and rather bulky OS for the Tyros confirms that there is a huge amount of code that has been written for the Tyros and the other home instruments that share it. Yamaha won't be upgrading this OS very often, if at all, because of the sheer expense involved in writing/rewriting this much code, sending out the updates, and manning the tech support and repair desks for people who will inevitably have problems performing the upgrade. In other words, you'd better like the Tyros a lot as it is because changes will come slowly or not at all.

Also, it would seem likely and logical that Yamaha is consolidating it's keyboard operating systems, using the same OS for several different models. While it's possible that Yamaha may eventually create a 76 or 88 note "Tyros Pro" model, I imagine that if Yamaha makes a Pro version at all they will now simply put the same Tyros OS and sound generator into a rack-mount version that would keep the overall Tyros features and just add a few desireable hardware features such as balanced XLR mic input and MLAN/digital outputs (especially if they want to market the "Tyros Workstation" to pro studio users). That would give pro users the option of using their own 76 or 88 note controller and studio-level interfaces without Yamaha going to great development expense with a whole new keyboard.

Just musings...