Ok....so....I'm old

And I know a little bit about a lot of cool techy stuff. But this makes my mind stop. A projector (a devise that makes a small picture bigger by using mirrors {old school} or lens) but its interactive.
What?!?! How can a picture of a picture be interactive?!?! Please explain this to me. Anyone? If this is true.... IRobot is right around the corner and I'm moving to Tenn. because I can't handle the creepy robot idea. But seriously, is this a computer? Do you plug your iPhone into this? Where is the information coming from?

Most importantly, how much is it? Because I want to buy it!!!! :) drop apple juice on this keyboard Bella! Ain't no thing baby!