So, what are you getting for that $1,600? Two 13.3-inch E Ink displays, 8GB internal storage, a microSD card slot, PDF compatibility and a Wacom pen for annotations. If you'll recall, Sony also has an E Ink device that's expensive and serves a very specific purpose. The $1,100 Digital Paper is targeted at TV and movie studios' HR departments and lets crew members easily read, fill out and submit paperwork. You know, without the hassle of using actual paper.
The Gvido is an interesting idea, and yes turning pages while playing is a hassle. But, that seems like an awful lot of money for a problem that can easily be solved with some Sortkwik and a little manual dexterity. If the tablet could actually listen to you while you play and turn the page for you automatically, that would be something!