business card printing for the future

How far away are musical business cards -- that is, ones that play a ringtone when they're given out or looked at, when someone looks at a business card to find a contact or make a contact. Of course, business card printing will be different in that case, but those companies will adjust. They'll find new techniques to spice up the appearance of the actual cards themselves. Maybe they'll be three-dimensional or even show small Flash animated movies. Yes, business cards will be miniature flat screen TVs. And they'll have contact info memorized and can also reel off your professional services.