Back in November, Michelle Kaufmann released a new white paper (pdf) titled "Redefining Cost: A Beacon of Hope Shines through Housing Market Gloom".
In it, she says:
The convergence of the financial, energy, and housing crises has essentially become a perfect storm with the power not only to weed out the risky and damaging housing industry practices of old but also to encourage the promulgation of more economically and environmentally sustainable practices going forward.
While the paper doesn't address prefab specifically, it covers issues that could affect the industry. It's definitely worth a look.
Hat tip: Building Systems on November, 27, 2008.