The Honda U3-X might look all futuristic and highly portable, but it doesn't pack much speed -- probably for the sake of stability. The Segway? Far too bulky, plus it's so yesterday (sorry, Woz). This brings us to the YikeBike -- a bizarre-looking foldable electric bicycle that was announced back in September. Since then this mini whizzer's been given a slight bump to its top speed (now 25km/h or 15.5mph) and range (10km; 40-minute charge time), while weighing just 22 pounds thanks to its carbon fiber composite fram
