Pretty much the same as my DIY one.
Full thread
HERE
Mine had the added facilities of cutout brakes, kill switch and cable parking when the bag is removed.
Bike 13kg, bag approx 3kg with A123 Battery.
As pointed out not the most powerfull machine but definately one of the quietest, lightest and most portable ebikes around.
Brompton have announced their version of an EBrompton due in limited release in the next month or so.
Regards
Jerry