On a more scientific and interesting note, a new paper in Nature reports on what happens to E.coli if you mess with its regulatory network in a big way. Not only is the paper interesting, but fellow blogger Pedro Beltrao is one of the authors.The paper takes

http://omicsomics.blogspot.com/2008/04/scrambling-ecoli.html

Evolvability and hierarchy in rewired bacterial gene networks. Isalan M (2008) Nature.
April 17, 2008