Apple iPhone: more mockups
There are some products that, if they don't exist, they should. One example is the rumored Apple iPhone: a simple iPod extended with mobile phone capabilities is the dream of numerous people.
Some people get even to the length of design a new product, in the way they would like to see it. For example, the iPhone has a large amount of possible designs, as can be see in this page.
If the iPhone, if launched, be as exciting as shown in some of these pictures, certainly it is gonna be a huge success.