A few years ago, someone said "I know, let's build a small, low-cost, modest performance notebook with good wifi connectivity and long battery life. We'll call it a netbook because it's great for surfing the net whilst on the move". And so the netbook was born, and it was a runaway success. But after a while people weren't happy with the small keyboards and displays and the performance was disappointing, so each new generation came out with bigger screens, faster processors, better graphics...
... and higher prices.
So then someone said "I know, let's build a small, low-cost, modest performance notebook with good wifi connectivity and long battery life. We'll call it a smartbook because it's such a smart idea I don't know why no-one thought of it before!"