From http://www.foxnews.com/leisure/2011/09/22/ford-builds-bicycle/:
"Ford says it has no intention of building the E-Bike just yet..."
"Pricing for the Smart Ebike has not been announced, but existing electric bikes with the similar specifications, like those from Kettler and Optibike, can cost anywhere from $2,500 to $9,000 or more in the United States."
I'd be tempted.
My Yamaha moped gets 85mpg and cruises at 38mph. I bought it used for $1,100.