It's worth noting that this is a research prototype, and that the team is anticipating rapid progress towards a better form factor. From the utah.edu link poste

It's worth noting that this is a research prototype, and that the team is anticipating rapid progress towards a better form factor. From the utah.edu link posted by maxerickson above: Mastrangelo said a lighter, more attractive pair could hit the marketplace in as early as three years and that a startup company, Sharpeyes LLC, has been created to commercialize the glasses.