Kindle Fire HD solves this air gap problem by laminating the touch sensor and the LCD together into a single layer of glass, creating a display that's easy to view even in overhead light, and reducing glare by 25% relative to iPad 3.

ENGADGET: Kindle Paperwhite and two Fires up for pre-order in Japan, Kindle Store opens there tomorrow

Most tablet displays are made up of two pieces of glass-an LCD on the bottom and a touch sensor on the top, separated by an air gap.

ENGADGET: Kindle Paperwhite and two Fires up for pre-order in Japan, Kindle Store opens there tomorrow

Fujistu spotted this gap, and created Wandant -- a sensor-laden neck tag for dogs complete with cloud-based service for tracking your pooch's wellbeing.

ENGADGET: Fujitsu's Wandant dog pedometer tracks your pet's moves, uploads them to the cloud