On the heels of the port-a-bach comes news of the iPad, another prefab "bach" (see note below) from New Zealand:
The iPAD is a true kitset bach designed to covers a range of options; it could be a one bedroom holiday home, secondary dwelling, granny flat, office, studio or resort unit to name but a few.
size: 530 sf (~1,100 sf with decks)
price: NZ$125,000 (~$97,000)
how: complete modules or kit
Bach = "small structures like beach huts or small holiday homes" (from Shedworking)
(Hat tip: Materialicio.us)