After perusing a couple art magazines at the neighboring big box bookstore I headed home to pack a picnic and rendezvous with family and friends. It was then that I made a new acquaintance who had transported himself to the park on a BikeE (below), and he was kind enough to let me ride it.
Postured with a dash of recline against a fabric seat-back is quite a contrast to my leaning forward on the Trek, on which I support my weight on rubber grips. It took a moment to realize what a lower center of gravity is like while pedaling, but it was quite a comfortable ride. I also appreciated the proximity of the controls (lights, computer, brakes, etc) being much closer than on my hybrid. I'll order two of these for immediate shipping.