The 610 has a mechanism that allows you to slide it down so that the display is lying almost face-up and at an almost-flat 60-degree angle, a position HP is dubbing Recline Mode.
You step aboard and it "oscillates" for a few seconds, getting the feel of you, and then it's fully cruise-able, at 6 mph in "learning mode, " and 12.5 mph flat-out.