We saw this JCE "SMOFO" electric folding bike in Taiwan. The Smofo appears to be sold directly by the manufacturer in Taichung City for about NT$28,000 (about US$900). This was at a roadside rest stop area with a battery charger plugged in.
The Lithium Ion battery is hidden in the top tube between the hinge and and steerer and provides a claimed 30 km of range. Rear hub motor, rear disc brake and front caliper brake, handlebar control with three power settings, 17 kg with battery.
Mark also talks about this Smofo bike over at Bike Hugger.