Cane 2.0

Cane 2.0 refers to a new technology to assist the visually impaired: "The Tacit, a hand-mounted system that pings surroundings and transmits distance information to the user..." So, 2.0 in this context refers to a technological advancement beyond something very physical and traditional.

[ Cane 2.0: The Tacit Is Hand-Mounted Sonar For The Vision Impaired from TechCrunch ]