Thought I'd post this. RT HArdware Requirements.
Hardware buttons: Must have five hardware buttons - 'Power', 'Rotation lock', 'Windows Key', 'Volume-up', 'Volume-down'. The Windows Key to be at least 10.5 mm in diameter.
5-point digitizers: Microsoft requires that Windows 8 touch PCs use digitizers supporting a minimum of 5 touch points.
Mobile Broadband: If a mobile broadband device is integrated into a tablet or convertible system, then an assisted GPS radio is required
Display: Minimum native resolution/color depth is 1366x768 at a depth of 32-bits. The physical dimensions of the display panel must match the aspect ratio of the native resolution. The native resolution of the panel can be greater than 1366 (horizontally) and 768 (vertically).
Near field communication: Devices supporting NFC need to have visual marks to help users locate and use the proximity technology.
New button combination for Control-Alt-Delete: The new option is to press Windows Key + Power.Storage: At least 10 GB free space, after the out-of-box experience completes.
Graphics: Direct3D 10 device with WDDM 1.2 driver
Camera: Minimum resolution 1280 x 720
Ambient light sensor: 1-30k lux capable with dynamic range of 5-60K.
Accelerometer: 3 axes with data rates at or above 50 Hz Magnetometer and gyroscope
USB 2.0: At least one controller and exposed port.
Networking: WLAN and Bluetooth 4.0 + LE (low energy)
System firmware: UEFI
Built-in speaker and microphone