Apple’s iPad is shipping on April 3rd, but Microsoft leaked its Courier tablet many months ago. Today, Engadget got an exclusive rendered demonstration of the device.

The Courier is being touted as a business journal, which clearly benefits from Microsoft’s dual-touchscreen design similar to the Android enTourage eDGe. New details about the Courier is that it will have a camera, be very portable at about 5 x 7 inches, quite powerful with nVidia’s Tegra 2, and uses Windows Phone 7. Engadget writes that the Courier will be available later this year.