Meet the Air Walker Glider: an elliptical machine that lets you stretch your muscles, work your hamstring strings, and burn calories. It lets you simulate a slow walk to a full run. It has 180 degrees of freedom. The console lets you monitor count, time, and calories.
The machine has a max user weight capacity of 220lbs. It has a stride length of 24 inches. Costs under $100 at this time.