Treehugger covered an aluminum prefab idea from Japan:

...an aluminum structural system that also works as a radiator for heat, and a conduit for electrical and plumbing.

Treehugger also linked to Greg LaVardera's post on prefab in Sweden.

Metro Hippie wrote about Lazor Office's Flatpak House.

Inhabitat's Prefab Friday looked at a container home in San Francisco:

...there isn’t a shortage of uses for containers as shelter, especially for those who like that super industrial architecture aesthetic. Leger Wanaselja Architecture finished their Container House at the close of last year, bringing a more traditional look to the container composed residence.