These devices are quite costly, and they are complex, so they tend to be prone to failure. So far, nobody has figured how to make them at a low enough cost so that the average person can afford one. They are showing up in mil-spec implementations and particularly in larger types of uses. It's in the small-system area that they seem to be having the most problems.  -   Rob Enderle     Quotes
These devices are quite costly, and they are complex, so they tend to be prone to failure. So far, nobody has figured how to make them at a low enough cost so that the average person can afford one. They are showing up in mil-spec implementations and particularly in larger types of uses. It's in the small-system area that they seem to be having the most problems. Rob Enderle
 Failure