General Kenobi, years ago you served my father in the Clone Wars. Now he begs you to help him in his struggle
against the Empire. I regret that I am unable to present my father’s request to you in person, but my ship has fallen under attack and I’m afraid my mission to bring you to Alderaan has failed. I have placed information vital to the survival of the Rebellion into the memory systems of this R2 unit. My father will know how to retrieve it. You must see this droid safely delivered to him on Alderaan. This is our most desperate hour. Help me, Obi-Wan Kenobi, you’re my only hope.
That was in the late Seventies, when moviegoers marvelled at the hologram of Leia. Good news has come in the 21st century: the technology is here, but isn’t quite ready for primetime. Currently the company has only one 27 inch prototype model available, but the company is planning to make 3 more (all of them 42 inch). Note the comment on the page: they expect the price to be competitive with plasmascreens.