ASCII Flight Stick Dreamcast.
While I love the DC VMU I actually like the Sony PocketStation more because of the design.
SEGA Dreameye. Worlds first console camera. It came with Software called Visual Park. The camera could also be used as a digital camera by taking it off the base. It had a video sharing service. Email and can call people.
The Mega Drive XE-1 AP. The worlds first Dual Analog Controller and had shoulder buttons...in 1989.