Quoting Scott,

"I do recall reading (though not positive) though that T2's audio recorder includes some aditional audio rec features not included in the S900's audio recorder. "


The Ty2 let's you overdub an existing audio recording, although you don't end up with more tracks (for editing control)- they're merged back into one.

I don't believe the S900 let's you do that- I can't see any reference to it in the manual.

Probably the biggest issue for me in any comparison would be the lack of a 3rd RH voice on the S900, but that doesn't seem to be of general concern.

John