Don't know if it has been discussed above, but I do see ONE use case for a larger foldable iPad display like this. I am a musician and exclusively use the 12.9 iPad for sheet music. I have tried rigging two iPads together to display two pages at once (if you do two pages on one iPad it really is too small to see well with older eyes) and link them together, but they constantly lose connection with each other and is cumbersome to use. Can't let a dropped connection happen in the middle of a performance! I'd love to have one of these since I don't care about the crease if it just separates two pages of music. I bet it will be exorbitantly expensive though. Oh well.