Here's another long-distance entry for the Solar Decathlon 2009: Team Spain's The Black and White House.

According to their site:

The major concept of the House is to be transportable and easy to build all over the world.

The prototype of The B&W House was therefore conceived as a modular plan made up of nine squares[.] For transport and assembly purposes, the house has been divided Into three mobile units.

Worth a look:

• blog
• news
• virtual visit
• assembly video (3:20)