I think the most used gadgets today are Blackberry’s and iPhones because blackberrys have BBM & whatsapp etc. so u dont have to waste your credit and its cheaper, and on iPhones you have Facetime, iMessage and kik messanger etc. which is all free aswell.
I think thats in the future when u ring someone off a mobile a hologram would appear on your phone screen as if that person was actually in the room, just a smaller version of them.
