If Microsoft trampled your hopes and dreams with the cancellation of its once promising dual-screen Courier project, a little-known device by the name of "Kno" might lift your spirits. The jumbo-sized tablet packs two 14.1-inch 1440x900 displays hinged together at the hip - both of which carry their own battery, offering up to eight hours of runtime.

All of that amounts to around 5.5lbs - or over three and a half times heftier than the iPad, which some people complain is too heavy. That said, the Kno is largely aimed at academic users who are likely to place it on a desk. With twin 14-inch screens, students could effectively replace a backpack full of textbooks, not to mention their laptop, which likely weighs around five pounds itself.

The company is reportedly working with education publishers such as Cengage Learning and McGraw-Hill. The "digital textbook" is powered by an Nvidia Tegra 2 SoC, has 16GB of storage space, and runs a "browser-based operating system on top of embedded Linux." Pricing is still unknown, but the company has said it's aiming for well under the $1,000 mark.