A Food Aroma from your phone

Remember my post about restaurants having menus that send smells for their visually impaired customers? (If not, read it here).
Well technology is rapidly invading the food scene in ways we cant imagine! There is a Japanese company called "Scentee" that is designing an added gadget to your smart phone (I-phone in particular for now), whereby it can allow you to smell food by a single click on the screen!

How does it work?