Laptop Killer? Apple iPad Comes Close, Says Mossberg

For the past week or so, I have been testing a sleek, light, silver-and-black tablet computer called an iPad. After spending hours and hours with it, I believe this beautiful new touch-screen device from Apple has the potential to change portable computing profoundly, and to challenge the primacy of the laptop. It could even help, eventually, to propel the finger-driven, multitouch user interface ahead of the mouse-driven interface that has prevailed for decades.

But first, it will have to prove that it really can replace the laptop or netbook for enough common tasks, enough of the time, to make it a viable alternative. And that may not be easy, because previous tablet computers have failed to catch on in the mass market, and the iPad lacks some of the features-such as a physical keyboard, a Webcam, USB ports and multitasking-that most laptop or netbook users have come to expect.

If people see the iPad mainly as an extra device to carry around, it will likely have limited appeal.