Schwinn's Tailwind electric bike -- which has been available for just a few months -- has been sitting in our apartment since post CES, waiting for the New York weather to shape up enough for us to give it a fair spin. Well, it's been beautiful recently, so the pedal-assist bike has been taken for several spins on our backyard BMX trail to see what kind of dust we could raise together. The bike is a retro, hulking, 58 pound package, with a Toshiba SCiB Quick Charge Plug n' Drive (SCiB) battery saddled onto the back for about 30 miles of assistance. It's an expensive (about $3,200) piece of eco-friendly transportation, to be sure. So the questions are thus: what do we think about Schwinn'