I'd also love it if as a teacher you could show more than one instrument or staff at a time on the board for the class to see. For example, when we are doing just sight reading or rhythm reading exercises, I have flutes projected up there, but only flutes can play. If I could project all woodwinds or even a simple C instrument treble clef, base clef, B flat instrument, F and E flat instruments at the same time, the whole class could play together with the SmartMusic displayed on the overhead projector.
On a side note, why does it take so long to go to the next piece in the method book??? I lose students' attention every time, then when you have to re-click all the settings on each number, we are wasting too much valuable class time.