A device and methods for supporting a payload, such as a user, at a variable
height
above the ground and for repositioning the payload in a dynamically stabilized
mode of operation. The transporter device has two laterally disposed primary wheels
and a payload support that may be used to raise or lower the payload. A torque
is applied to the laterally disposed wheels so as to propel the transporter on
the basis of a control signal that may include repositioning of the device.
