David R Hoover, Architect, NCARB

This is a interesting and unique idea for a house: http://www.usatoday.com/money/economy/housing/2008-07-14-shippingcontainers_N.htm Of course, if you could ship your house to other areas of the world, then it would be fairly useful.

Here is an interesting project completed by GKV Architects. It is primarily designed for men, and preferably bachelors: http://www.aia.org/aiarchitect/thisweek08/0613/0613p_pad.cfm The building is a luxury residence in downtown Manhattan called the Sky House Condominiums, which were designed by Bruce Fowle, FAIA, and the model apartment is the project shown in the article.

Here is a very cool miniHouse that can be connected to the back of your truck and set on site without a foundation: http://sustain.ca/ Plus, it is not a trailer, but it still qualifies as a Recreational Vehicle.

There is an interesting article located here: http://hurricane.lsu.edu/_in_the_news/042807_seattle_times.html It discusses houses located in the Netherlands and Pointe Coupee Parish in Louisiana that utilize a buoyant foundation made of expanded polystyrene to raise the house in flood waters. The house is connected to poles on either side, which keep the house anchored to the site. Elizabeth English, who is with the Louisiana State University Hurricane Center, stated that she has met resistance from FEMA and local building departments, since the housing type is currently not covered under the International Building Code.