I'm not really sure how much of an advantage a CD (I assume recordable?) drive will bring, especially since removeable media like that offered on the PSR3000 imo seems to offer more flexibility. I only hope Tyros II will include removeable media like the 3000 has as well."

Maybe it will have an onboard hard disk recorder. Sometimes that could come in handy.

Perhaps Yamaha is trying to give the user the most options for file transfer.
I also think that it should be 76 keys especially since the first one is 61 keys.

We will just have to wait and see if Yamaha will come with any major inovations or just update old technologies.