CUPERTINO--With its customary flair for the dramatic, Apple computer announced Wednesday the back-to-school availability of the 'PiggyMac,' a bioengineered Macintosh computer embedded in a living, breathing piglet.

I've always thought that there was probably more medical progress to be made in devices than in biotech. Our materials and control technology is too primative. But I never expected that biotech would turn out to such a productive way to build household devices.

It's natural though. Energy use, reproduction, self repair have all been optimized by evolution. We should take advantage of it.

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