On May 1, 2007, at 5:43 AM, David VanHorn wrote:

> so many of these start off with the phrase "is developing".

I think most of the ones I've seen have been research projects.
That is, a particular sensor for a particular gas/etc can be
(and are) manufactured, but the idea of using MEMS technology
to put a whole bunch of different sensors to detect different
things on a single "chip" is still just research.

BillW

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