Matthew Grace Architecture in Australia now offers four resPOD prefab homes.

According to their site, resPOD is:

an extremely cost effective modular form of flexible living that enables every homeowner to be environmentally responsible and sustainable whilst maintaining a high level of quality and detail.

All models are constructed from steel shipping containers.

Model	Size	BR	Bath	Stories
A-Type	291 sf (27 m²)	1	1	1
B-Type	603 sf (56 m²)	2	1	1
C-Type	1,120 sf (104 m²)	3	1	2
D-Type	1,668 sf (155 m²)	4	2	3

(We were unable to find pricing information.)

Hat tip: Inhabitat on May 25, 2009.