Design has always been good at pushing the limits of possibility. The Bombardier unicycle concept takes the gyroscopic advances of the Segway and imagines a unicycle for 2025. Ford Motor Co. goes back to the future with a concept car that is a mid-engine roadster kit that can be put together at home. No welding; only bolts. No painting; just aluminum, bamboo, and plastics. And no hydraulic fluids; it has electric brakes and steering. Think IKEA. Microsoft Corp. envisioned the productivity gains that its future software might generate. It shows how it could work in its Center for Information Work in Redmond, Wash. It uses workplace scenarios to find ways to empower workers, advance collaboration, and speed decision-making. Samsung's clever idea: Shift the printer off the desk to the top of the cubicle wall.