Return of the Deutsche Mark?

Hamish McRae in the Independent (via Fistful of Euros) discusses a debate which – after last week’s voting in France and the Netherlands – has now broken out into the open:

So was the euro a terrible mistake? Will Germany, Italy and France go
back to the mark, the lira and the franc? A string of stories have hit
the streets hinting that this may be the outcome following the failure
of France and the Netherlands to ratify the European constitution.
(…)
In Germany, Stern magazine reported that Hans Eichel, the finance
minister, had met with officials to prepare for a collapse of the euro.
Clearly some sort of meeting did take place, and it would in any case
be prudent for the German government to have contingency plans.
Economics minister Wolfgang Clement admitted the country was paying a
high price for euro membership. Some 56 per cent of the German people,
according to the polls, would like the mark back.

I am not an economist, but it would be interesting to have an open discussion on both the short- and long-term impact the Euro has on the German economy.  IS the unified currency system unjustly penalizing Germany, which in the past had the strongest currency on the Continenet?  Or is the Euro simply a scapegoat for the fiscal mismangement of the German economy, a convenient target for mistrust and resentment against the "elite" bureaucrats in Brussels?  Stephan Kaufmann, writing in the Berliner Zeitung, suspects the latter:

Die Erklärung für die Anti-Euro-Stimmung liegt wohl weniger in der
ökonomischen Qualität des neuen Geldes, sondern in seiner politischen:
Es ist nicht deutsch. Der Euro gilt als eine Erfindung Brüsseler
Bürokraten, als "Kunstgeld" ohne Heimat – als wäre die D-Mark ein
"natürliches" Geld gewesen, dass im heimischen Boden wurzelte und keine
Bürokratie zu seiner Betreuung brauchte.

The fallout from the NO votes to the European constitution is now becoming clearer.  One of the biggest victims is the Euro.  Will the damage be lasting?