As far as functionality is concerned, Microsoft's wireless Arc keyboard is fairly standard. However, the crazy, warped design is what really makes it stand out.
"The design tenets that we looked to for the Arc Keyboard were simplicity and crisp softness, creating an aesthetic for this product that is casual and sophisticated at the same time," said Monique Chatterjee, industrial designer for Microsoft Hardware. "We drew our design inspiration directly from the places where we envision this product will be used so it perfectly blends with existing home accessories."
Kind of looks like they drew their inspiration from hallucinogenic substances, but hey—it could be really comfortable to use. [Microsoft]