Gating Technology: The E-Factor

I'm starting to write more posts about energy efficiency, since it obviously feeds into issues surrounding various environmental commons. But it's increasingly clear to me that its impact is going to be much more direct on the technologies I consider on a regular basis.

Take this, for example:

In a piece of research that could have implications for the future of mobile broadband, a US analyst firm has claimed that new mobile applications will make pure cellular technology too energy-inefficient to be practical in the future.

This is going to happen again and again, changing the course of technology development just when everyone thought they knew where it was going....