Cool!
During the first press conference, the leader of the EDL team said the skycrane had 140 kilos of Hydrazine left in the tanks when it crashed.
When asked by a member of the press, when and if Curiosity would inspect the crash site, a consensus was expressed that exposing the rover to all that Hydrazine was the last thing anyone wanted to do.
I'm wondering if that propellant degrades down to a "safe" level over time?