There's a new digital music reader due to come out in the Fall of this years. It's called, GVIDO and pronounced Guido. It's 13.3" tall and 2 pages wide. A bit pricey at $1600 U.S.
Here's are a couple of links if interested:
GVIDO website
GVIDO review
Looks interesting but at that price I think I'll stick with paper and pencil.