Thanks chrisser for the warning.
Perhaps someone with more patience than I will summarize the list?
Summary of remaining 7
Tap Detection
The Surface's keyboard has a few more tricks up its sleeve. You can rest your hands on top of the keys, something you generally can't do with an onscreen keyboard. Microsoft invented a fast, pressure-sensitive digitizer that enables this feature; an algorithm helps determine whether you meant to press a key or not. Microsoft calls this feature “tap detection.”
Surface Pro For Power Users
The iPad and other tablets are targeted primarily at consumers, but Microsoft is casting a wider net. While the Windows RT-based consumer model uses an ARM processor, the powerful Surface for Windows 8 Professional is designed for power users and enterprises. Featuring a 3rd-generation Intel Core i5 CPU, the Pro model runs Windows desktop apps, has full HD (1080p) graphics, supports digital ink for pen input, and even has a nifty magnetic-charging connector for a stylus.
VaporMg
Microsoft is very proud of its VaporMg manufacturing process that enables the Surface's sturdy shell, smooth finish, sleek design, and intricate angles. The complex procedure begins with an ingot of magnesium, which is melted down to a molten state and molded to 0.65 millimeters thick; by comparison, a credit card is 0.75 inches thick. The resulting VaporMg case is thin yet strong
Full-Sized USB Port
The Surface may be ultra-thin, but it's thick enough for a full-sized USB port. Surface for Windows RT supports USB 2.0, while Surface for Windows 8 Pro supports the speedier USB 3.0 spec. The benefit here, of course, is that you won't have to cough up more cash for an overpriced proprietary cable to connect your USB-based peripherals. Are you listening, Apple?
Tuned For Skype
Keeping It Cool
The Surface for Windows 8 Pro, powered by a speedy Intel Core i5 CPU, can run demanding Windows desktop apps that generate a lot of heat. So how does Surface stay cool? Microsoft's solution is “perimeter venting,” a groove that extends around the outside of the case. The design allows air to be uniformly distributed across the entire tablet. Your hands won't block the airflow, either.
Optical Bonding
The 10.6-inch ClearType HD Display has a 16:9 aspect ratio and a wide viewing angle. Its optically-bonded design benefits stylus users by eliminating layers between the cover glass and the screen. “It feels like you're inking right on the page,” said Angiulo. “The distance between the stylus and where I see the ink is only 0.7 millimeters. That's the thinnest and closest distance of any tablet PC—any inking tablet—ever.” Good digital-ink capabilities will help Surface Pro’s chances in the enterprise.