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.

It can be grouped as a series of pavilions to form larger accommodation if required....

Of particular note is that the iPAD can be either manufactured off-site and easily transported to its final destination, or shipped as a kitset and erected on site by a licensed contractor.

TreeHugger has some thoughts and also mentions the earlier Bachkit.

Bach = "small structures like beach huts or small holiday homes" (from Shedworking)

(Hat tip: Materialicio.us)