I don't want to fan the flames but this article has some interesting points
http://www.edn.com/article/CA502427.html
The add on price quoted here is $150.00 not the $400.00 that has been
bandied about.
Since the controller is a TI part, it can't be too hard to build a competing
product. The big trick is stopping the blade.
Bob
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Coffee worth staying up for - NY Times
www.moondoggiecoffee.com