From personally using/selling this computer for about a month, I can say it is nothing more than a gimmick. It's nothing more than a glorified tablet with a glossy screen. If HP were serious about trying to revolutionize an industry, chances are, they'd have to partner with Apple to use their patents. As it is now, the screen is uncomfortable, buggy, and horrifically unprecise. Plus, the computer itself is nothing special, being built on the same platform as their DV5 series of laptops. The processor is just a Core2 Duo T5750 which barely clocks at 2.0ghz. They try to make up for the mediocre processor with 4gb of 333mhz DDR2, and fail. The screen has no multi-touch capability, so using an on-screen keyboard is a pain because response time shows as much latency as someone trying to play WoW on a 28.8kbps dial-up connection.
HP will never turn novelty into a revolution. These companies do nothing more than market the norm with a little more glitz, and unfortunately, the age of the keyboard and mouse is not yet over.
Give me a capacitive multi-touch screen with haptic feedback that runs linux with Enlightenment or one of the other eyecandy desktop environments on a low profile desktop form factor, then we'll see if touch screens are the way of the future.