Ultrabooks are defined by Intel as being notebooks that are very thin, have long battery life, sport elegant design, boot up quickly, and feature advanced security.

FORBES: Ultrabooks Step Into The Limelight

They have long since outlived their design life and for at least 18 years none of them has been tested in an operationally realistic way (that is, with an underground nuclear detonation).

CENTERFORSECURITYPOLICY: Stopping START

Kindle Paperwhite is the most-advanced e-reader ever constructed with 62% more pixels and 25% increased contrast, a patented built-in front light for reading in all lighting conditions, extra-long battery life, and a thin and light design.

ENGADGET: Kindle Fire HD 8.9 ships today, 4G version to follow next week

The impossibly slim, sub-three-pound design is a huge boon, as is its long battery life and fast performance.

ENGADGET: ASUS Zenbook Prime UX31A Ultrabook review: a high-res display, and a much-improved keyboard

Called BMW Guggenheim Lab, the partnership is a six-year-long program designed to help architects, engineers, artists and scientists design new models for urban life worldwide.

FORBES: BMW, Guggenheim to Design Urban Future