This would be really good for nuclear plants, but we'll never see it there. I love using mems for accelerometers, since they are so solid. For example, at the old company, we had a big foo-for-all about the feeders, and millions were spent in useless seismic analysis. But some measurements showed the feeders vibrated at more than 10 times what any earthquake could introduce. Some of these sensors fixed on such things would do wonders.