For a product to be successful, it's necessary (though not sufficient) to be able to define it in one sentence. The iPhone is: "A touch-screen phone that's also an iPod". The BlackBerry was "Push email". The Wii is "Game console with a motion sensor". The Motorola RAZR was "Insanely thin clamshell". The Titanic was "Unsinkable luxury ocean liner". The Walkman was "Music on-the-go". The N800/N810 are "Internet on-the-go". Nokia N95 is "Maximal convergence device". Nokia 5800 is "Comes with music". Unix is "Everything is a file". The idea needs to be in place before the product is designed. Once you have the "single big idea", the rest of the product design more-or-less falls into place around it. If you can't convey the idea of a product concisely, not only won't it be possible to market it successfully, but the product itself will probably bomb because it lacks a sense of purpose and will end up being designed by committee. For the N900, "Full internet in your pocket, always connected" would do it for me. Regards, Roger