If one 13" E-ink screen is fine for the Sony DPT-S1 digital writing slate, then the two screens on the NotesNote sheet music reader must be twice as good.
NotesNote is an Estonia- and England-based startup that wants to build an ereader for a niche market: musicians. Their design is just reaching the prototype stage and isn't ready to be shown to the public, but they have posted a promo video which shows that the concept is based on two 13.3" E-ink screens with a stylus, a week of battery life, and a frontlight.
To be clear, the video mentions a backlight, but I was told on Twitter that NotesNote calls it a backlight because that's what they think the user will call it.
This is a nifty device, but I wouldn't expect to see this device reach the market.
Counting the dual-screen ereader concept design that Plastic Logic threw together for CES 2013, and the Printless Plans 21" Zephyr blueprint reader, the NotesNote device is at least the third such idea to cross my desk in the past few years.
No matter whether they encountered financial, technical, or other problems, none have seen even a limited release. Simply developing an original design is a difficult technical undertaking, but trying to get the product financed when it serves a niche market?
The odds are against NotesNote pulling it off.