These are shots of the prototypes of Max Battaglia’s prototype Hyper Touch Guitar:
Introducing the Hyper Touch Guitar. From the mind of Max Battaglia at Givingshape Design Studio, this unorthodox design replaces strings with a multi-touch screen, allowing the user to adjust the number of “strings” and frets, as well as tuning and sound effects. A wireless command center that permits endless customization and infinite possibilities of expression.
Unfortunately, the Hyper Touch Guitar is just a design concept at this point. Looks pretty cool, though!