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You enter a restaurant and take seat. On the table you have a touch screen probably double the size of a PDA(yes, smaller than the one displayed on the left). You open it and see various options available to you.
Food
Drinks
Music
Assuming you choose 'food' and you get options ranging from Chinese, Muglai to Thai and whatever you normally get to see in a restaurant. Just read the customer comments and ratings for each of the delicacies as rated by so many customers who would have tried them, loved them and hated them and you could probably choose from the best rated to weirdly commented.
How about the item you heard from your friend he said tastes good? You might want to check out how have others rated it and what do they say about it. Put it in the search option available to you on the top of your screen(powered by none other than Goggle).
You liked it! But then you like it low salt, low oil, spicy etc. You choose from the options of various degrees for each ingredient of the dish.
You choose your drinks, food and confirm your order. Pops up the screen letting you know the time you will have to wait for that chilled drink to quench your thirst or satiate your palate.
Now when you have had a nice time with your family so you don't call the waiter who could take a few minutes to come over and then do the whole money exchange thing(of course not necessary). Just look at the right side of the menu there is swipe machine integrated in your touch screen. You swipe your card enter the amount of your bill which was displayed as soon as you pressed that red "bill" tab - I know you hate it. Oh you don't use credit cards! Just press the "cash" tab next and that same waiter who served you appears in less than a minute with all the possibilities of the change that he may have to give you back. In the meanwhile you could have added your ratings and comments on what you liked and what you did not.
By the way you like music when you go out for a fine meal, don't you? You could have chosen your pick from the music library that was available to you right from your touch screen.
You just had your fine meal in restaurants that could be the future.