Speech Recognition: the healthy alternative
With slashdot relaying that the average PC keyboard has 250 times more bacteria than a toilet seat, the only healthy choice has got to be desktop SR. (I don't think the Swedish study compared microphone germs - has anyone done this?).
But seriously, there are better reasons to use speeech on the desktop - see Rob Chambers' blog, for example, and Robert Brown's article Talking Windows on what's coming in Windows Vista.