That was a great picture!
My feelings on Phoenix are mixed. I am very glad that the retro rocket landing went well. I think the uses of "beach ball" landings might be a tad limited, so this might get things back on track.
In principle, the mission objectives seem reasonable enough--searching for the preconditions for life. The information will be a welcomed addition.
However, NASA has a rather interesting past history of actually finding evidence, and them disclaiming its significance. There has been no sythetic reappraisal of the Viking mission, even though evidence has been revealed since 1976 to substantiate the claim that the lander did, in fact, detect the presence of biotic signatures in the soil sample. The primary investigator, Levin, has recently published concerning new findings and an analysis of NASA's judgment at the time based on its suppositions concerning what must be present for life to exist.
NASA has also failed to follow up on recent discoveries of nanobacteria on Earth that would go a long way to substantiating the claim that the martian meteroite (AH---------!) did in fact contain fossilized bacteria.
So, even with this limited study by Phoenix, what might we expect of the results? Hints that require confirmation? Inconclusive findings? Results due to a malfunction of testing equipment or an unknown factor not controlled for?
While I approve of the smaller/cheaper mandate, and tighter cost controls in principle, it seems the Mars question really requires a new, bold and comprehensive robotic exploration--think rovers with a 21st century chemical testing lab on board, with RTGs for year-round, planet-wide, and decade long exploration. And send two!
My hope is that this successful landing, and the knowledge gleened from troubleshooting will result in this bolder thinking. I think Americans can accept the attendant risks of mission failures. Fortune favors the brave!