Fortunately, hitchhiker72 writes in his blog that there can be pluses this time:
Mercury retrograde is cycling back through Fire and Water signs this year, creating the potential for … steam! Use it to power engines, but don’t get scalded.One can hope.
12 March to 4 April 2012, 6+° Aries to 23+° PiscesAries, a Fire sign.
14 to 8 August 2012, 12+° to 1+° Leo
6 to 26 November 2012, 4+° Sagittarius to 18+° Scorpio
It is close enough to Uranus for any volatility to be amplified, but also the potential for ‘out of the box’ thinking and problem-solving.
So there may be the opportunity to revisit old problems and come up with creative new solutions, once you’ve sidestepped all the delays and technical glitches!