On Thu, Nov 15, 2001 at 11:54:54AM -0500, Jamey Hicks wrote:
> Floating inputs are bad -- these can cause the input drivers of a chip 
> to consume lots of power, but only if the chip is turned on.  Floating 
> outputs are fine and may save power as long as they do not cause 
> problems with floating inputs.

Unfortunately, in the case of GPIOs, a floating output is a floating input
(since, it is an input and an output, and for it to float or be used as
an input, the output driver needs to be turned off).

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